Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

STL - PHL

$29 Find cheap flights from St. Louis to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Philadelphia departing on 5/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/15
Sat 6/22

Search hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Philadelphia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Philadelphia, as well as popular online travel agencies
In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from St. Louis to Philadelphia (STL-PHL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:47 am - 12:01 pmSTL-PHL
2h 14mnonstop
12:51 pm - 2:18 pmPHL-STL
2h 27mnonstop
$48Frontier
Find Deal
Wed, May 29 - Sat, Jun 29
9:32 pm - 12:44 amSTL-PHL
2h 12mnonstop
7:18 pm - 8:42 pmPHL-STL
2h 24mnonstop
$58Frontier
Find Deal
Wed, Jul 17 - Wed, Jul 31
8:47 am - 12:01 pmSTL-PHL
2h 14mnonstop
5:05 am - 2:23 pmPHL-STL
10h 18m1 stop
Wed, May 29 - Tue, Jun 11
10:36 pm - 1:48 amSTL-PHL
2h 12mnonstop
11:13 am - 9:06 pmPHL-STL
10h 53m1 stop
Wed, Jun 12 - Wed, Jun 19
6:08 am - 9:23 amSTL-PHL
2h 15mnonstop
7:08 pm - 8:49 pmPHL-STL
2h 41mnonstop
$131American Airlines
Find Deal
Wed, Jul 17 - Wed, Jul 17
6:08 am - 9:25 amSTL-PHL
2h 17mnonstop
10:40 am - 12:16 pmPHL-STL
2h 36mnonstop
$134American Airlines
Find Deal
Sat, Jun 8 - Tue, Jun 11
11:39 am - 9:02 pmSTL-PHL
8h 23m1 stop
5:05 am - 5:28 pmPHL-STL
13h 23m1 stop
$184Spirit Airlines
Find Deal
Sat, Jun 1 - Sat, Jun 8
7:30 pm - 1:25 pmSTL-PHL
16h 55m1 stop
7:11 pm - 10:28 amPHL-STL
16h 17m1 stop
$194Spirit Airlines
Find Deal
Thu, May 30 - Fri, May 31
3:49 pm - 11:16 pmSTL-PHL
6h 27m1 stop
8:05 am - 2:44 pmPHL-STL
7h 39m1 stop
$196Delta
Find Deal
Wed, Jul 17 - Tue, Jul 23
6:30 pm - 12:53 amSTL-PHL
5h 23m1 stop
5:20 am - 8:54 amPHL-STL
4h 34m1 stop
$197Delta
Find Deal
Tue, May 28 - Fri, May 31

Flights from St. Louis to Philadelphia - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Philadelphia?

The average price of all flights from St. Louis to Philadelphia clicked on KAYAK for each day over the last 12 months.
When flying from St. Louis to Philadelphia, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Saturdays and the most expensive ones on Sundays.

What is the cheapest month to fly from St. Louis to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Philadelphia is December, where tickets cost $310 on average. On the other hand, the most expensive months are November and February, where the average cost of tickets is $397 and $386 respectively.

How far in advance should I book a flight from St. Louis to Philadelphia?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Philadelphia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Philadelphia, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 87 days before departure.

Which airlines provide the cheapest flights from St. Louis to Philadelphia?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Frontier ($29) and American Airlines ($66). The cheapest round-trip tickets were found on Frontier ($48) and American Airlines ($131).

Which airlines fly most frequently between St. Louis and Philadelphia?

St. Louis and Philadelphia are connected by different airlines. The airlines that fly that route the most regularly are American Airlines (6 flights per day), Southwest (3 flights per day), and Frontier (one flight per day).

Which airlines fly non-stop between St. Louis and Philadelphia?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from St. Louis to Philadelphia.
There are 3 airlines that fly nonstop from St. Louis to Philadelphia. They are: American Airlines, Frontier and Southwest. The cheapest price of all airlines flying this route was found with Frontier at $71 for a one-way flight. On average, the best prices for this route can be found at Frontier.

How many flights are there between St. Louis and Philadelphia per day?

Each day, there are between 10 and 13 nonstop flights that take off from St. Louis and land in Philadelphia, with an average flight time of 2h 12m. The most common departure time is 11:00 am and most flights take off in the morning. Each week, there are 78 flights. The most frequent day of departure is Wednesday, when 17% of all weekly flights depart. The fewest flights depart on a Tuesday.

Which cabin class options are there for flights between St. Louis and Philadelphia?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from St. Louis to Philadelphia take?

Direct flights cover the 811 miles separating St. Louis to Philadelphia in about 2h 05m.

What’s the earliest departure time from St. Louis to Philadelphia?

Early birds can take the earliest flight from St. Louis at 5:30 am and will be landing in Philadelphia at 8:47 am.

What’s the latest departure time from St. Louis to Philadelphia?

If you prefer to fly at night, the latest flight from St. Louis to Philadelphia jets off at 10:36 pm and lands at 1:48 am.

Good to know

Low season

January

High season

June

Cheapest flight

$29
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from St. Louis to Philadelphia

When to book flights from St. Louis to Philadelphia

Are your dates flexible? Find out the best times to travel from St. Louis to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Philadelphia

  • Does PHL have any pet relief areas?

    If you’re traveling with a pet through Philadelphia International Airport, please ensure that they remain in a safe carrier unless you’re using the pet relief areas. The pet relief areas at PHL are located at multiple points around the airport, including inside the terminals, in the departure areas, and the arrivals areas. For arriving passengers, the most conveniently-located relief areas can be found adjacent to Terminals A-East, Terminal B past baggage claim, and Terminal E along the Commercial Vehicle Roadway.

  • Which is the quickest way from St Louis to STL?

    There are multiple ways through which you can get to STL from the city center. The most popular method and also the most pocket-friendly would be using the metro, which can be boarded from the Civic Center. However, that isn’t the quickest. If you want to get to the airport within a shorter period, taking a taxi or driving via the I-64 W and I-170 N would be more ideal. This will take you about 15 minutes, while the metro will be 40 minutes on a good day.

  • Which airlines have a lounge at STL?

    At the moment, the only airline with a lounge at STL is American Airlines. They have an American Airlines Admirals Club located in Terminal 1 between Concourses B and C near Gate 1. Here you can find complimentary snacks and beverages, comfortable seats, TVs, and Wi-Fi. It is worth mentioning that the airport has other lounges: The USO Lounge and Wingtips Lounge, located in Concourse E on Terminal 2 near Gate E22.

  • How do I get to downtown Philadelphia from PHL?

    You can get to downtown Philly from PHL using multiple means, such as taxis, rental cars, airport shuttle, and public transit. For convenience, taxis and rental cars are a better choice since they are easily available at the airport and will take you to any destination in Philly. However, they are significantly more expensive compared to public transport.

  • What is the cheapest flight from St. Louis to Philadelphia?

    In the last 3 days, the lowest price for a flight from St. Louis to Philadelphia was $29 for a one-way ticket and $48 for a round-trip.

  • Do I need a passport to fly between St. Louis and Philadelphia?

    No

  • Which airports will I be using when flying from St. Louis to Philadelphia?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Philadelphia, also known as Philadelphia.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Philadelphia?

    All the following airlines offer inflight Wi-Fi service on the St. Louis to Philadelphia flight route: American Airlines, Delta, Alaska Airlines, United Airlines, PSA Airlines, Lufthansa, and JetBlue.

  • Which aircraft models fly most regularly from St. Louis to Philadelphia?

    The Airbus A319 is the aircraft model that flies most regularly on the St. Louis to Philadelphia flight route.

  • Which airline alliances offer flights from St. Louis to Philadelphia?

    oneworld is the only airline alliance operating flights between St. Louis and Philadelphia.

  • On which days can I fly direct from St. Louis to Philadelphia?

    There are nonstop flights from St. Louis to Philadelphia on a daily basis.

  • Which is the best airline for flights from St. Louis to Philadelphia, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Philadelphia are Delta and United Airlines. With an average price for the route of $366 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $570 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Philadelphia with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and PHL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from St. Louis to Philadelphia

  • Looking for a cheap flight? 25% of our users found flights on this route for $156 or less one-way and $333 or less round-trip.
  • If you want to leave your car at St. Louis Lambert International Airport (STL), please ensure that you compare the rates charged by airport parking to those charged by offsite parking companies. In most cases, the offsite parking lots charge lower rates compared to airport parking, and you even get a free shuttle to the terminals.
  • Traveling moms will be happy to know that PHL has multiple nursing suites where you can privately breastfeed your child. The Mamava Suites are located in four different areas; in Terminals A West and Terminal F, as well as the B/C and D/E Connectors. These nursing suites are available for free to all travelers.
  • To save on flight costs, consider booking your flight tickets in advance and be flexible with your travel dates. For example, avoid traveling on holidays and weekends since the ticket demand is usually higher on such days, so airlines will charge higher prices for these tickets.
  • Consider booking direct flights instead of connecting flights to make your trip more sustainable. This is because direct flights are shorter and therefore end up burning less fuel leading to lower carbon emissions compared to connecting flights.
  • If you need specific in-flight services such as Wi-Fi, please confirm their availability during the booking. This is because different flights tend to offer varying services even when serviced by the same airline.
See more tips

Prefer to fly non-stop from St. Louis to Philadelphia?

Find which airlines fly direct from Lambert-St Louis to Philadelphia, which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Philadelphia

Monday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Tuesday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Wednesday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Thursday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Friday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Saturday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Sunday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

See more direct flights

Nonstop returns

Philadelphia to Lambert-St Louis

Monday

American Airlines, British Airways, Frontier, +3 more

American Airlines, British Airways, +4 more

Tuesday

American Airlines, British Airways, Iberia, +2 more

American Airlines, British Airways, +3 more

Wednesday

American Airlines, British Airways, Frontier, +3 more

American Airlines, British Airways, +4 more

Thursday

American Airlines, British Airways, Iberia, +2 more

American Airlines, British Airways, +3 more

Friday

American Airlines, British Airways, Frontier, +3 more

American Airlines, British Airways, +4 more

Saturday

American Airlines, British Airways, Frontier, +3 more

American Airlines, British Airways, +4 more

Sunday

American Airlines, British Airways, Iberia, +2 more

American Airlines, British Airways, +3 more

See more direct flights
See more direct flights

Top 5 airlines serving from St. Louis to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Philadelphia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10673 reviews
8.2Boarding
8.6Crew
8.0Entertainment
7.4Food
7.9Comfort
Airline reviews

5-hour delay due to storms in Tanoa and airspace restricted by Miami traffic controllers.

6.0 GoodGary, May 2024MSP - TPA
Read more about Delta reviews

5-hour delay due to storms in Tanoa and airspace restricted by Miami traffic controllers.

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Tray table was filthy when I sat down. I needed to have someone come clean it because there was food and stains on it WiFi didn’t work after paying for in-flight WiFi. Food was terrible and was not filling at all Chicken was rubbery Flight attendant had an attitude, interrupted me and wasn’t able to answer basic questions about the food selection such as “does the chicken have red sauce in it”. If your flight attendants are not going to know what is in the meals so we can make an educated decision based on dietary restrictions, they shouldn’t be on the plane. My 1.5 year old niece was sleeping and dropped her binkie. I went on the ground under the chairs looking for it. It was at that time that she came up to me as I’m CLEARLY on all 4s with a flashlight and said “I need to get by”. I said one moment please I’m getting something from under the seat (while my head was literally under the seat). Her reply was “no you need to move now” and proceeded to almost push me out of the way. I looked up and all I saw was her toes under my eyes. When I looked in front of me, her private parts were inches away from my face. I then made a comment “you couldn’t waited 2 seconds?” and her response was, “no I need to use the bathroom”. I understand that and would never want to be the reason someone couldn’t get to the bathroom but I was under the seat. She could’ve gone around the other way instead of harassing me, basically placing her private parts on my head and borderline pushing me out of the way. You don’t pay that much for this deplorable experience. This was by far the worst experience I have ever had on American. I will be absolutely thinking twice and thrice about flying American Airlines again. I would rather pay more to fly delta because at least I know their WiFi will work and their flight attendants won’t have a shitty attitude for no reason, nor will they act the way this woman did. Unacceptable.

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

Too bad that first class seats do not recline significantly causing discomfort

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Was as expected. Good leg room on planes - much appreciated.

Smaller, regional aircraft limits amount of overhead luggage space. At least there were jetways at both BNA and PHL. First class food service was minimal with the usual assortment of packaged snacks (nothing creative) and no handiwipes. American tries to turn around aircraft too quickly without enough time to clean the planes. WIFI service did not include TV programming.

6 plus hour delay with no explanation. No wheelchairs to transport us on arrival. Very disappointed.

Food choice is limited, entertainment better than average, seat leg room terrible

While I received notice that AA 478 was delayed, the flight departed PHX and arrived PHL more than two hours late. The first class cabin service was mediocre; there were no pre-departure beverages offered; there were no warm mixed nuts served with cocktails; there was no personal greeting to me as an Executive Platinum member by the first class flight attendant. While the flight operated safely, its arrival at 0219 in the morning in PHL ended a very long day. I do not feel that American provided first class service.

Never been on this flight as i had missed it due to delayed connecting flight

Horrible. Delays, no customer support and fake promises and everything. i am suffering to help as due to connecting flight getting missed no support on ground and customer support window is closed and we are sitting o ground without anything

Missed our departing flight due to poor baggage drop staff. At the airport with 2 & 1/2 hours to spare and waited in bag check in until 15 minutes prior to gates closing before baggage staff asked us to move to the front of the line. We weren’t the only passengers that missed the flight. Poor organizational operations by Spirit staff. Otherwise , the return trip was fine.

My experience with Spirit was perfect. Did not expect it to be this good

Worst airline experience ever. Lost my IPad going thru security. Charged for my dog carriage at the gate not at ticket counter. Gave away my seat 6D. Expressed I wanted my seat back after charging me 99 for dog carriage. Should have thrown it out. Had a 16 yr old Yorkie heading to Boston after being a snowbird. Seats small. Very bad experience. Still don’t have my IPad. Horrible

My mother was HARASSED AND ACCOSTED by the gate agent for her bag. I pre purchased the bag fee and the gate agent made my 78 year old mother board, deplane, re pay for her bag fee and board again. The gate agent made my mother pick up her own bag and REFUSED to help her, she is an older woman who wasn’t bothering anyone on a flight that had maybe 30’total passengers. I am going to sue this airlines for their HORRIBLE customer service and treatment of my mother, and all this occurred the day after Mother’s Day!!!

The boarding gate was moved so many times that I missed my flight. No attendants would help me. The wrong gate was even on my boarding pass. I had to repurchase everything. I’ll never fly again. Really a terrible day as I had planned to see a former student who is dying in Louisville Never ever will I forget that day. Your airline is totally uncaring.

Horrible, first flight delayed. They switched my connecting flight while I was en route and even though I was originally supposed to be on the flight going back home to boston, refused to let me board and told me I would have to wait for next flight that was 14 hours later. Ended up renting a car and driving 6.5 hours back home. Still getting messages about flight and it is now showing that the other flight they put me on is now canceled and I would have to wait 24 hours for the next one. I will never book with spirit again

Hated it I would not use Kayak or Spirit ever again.

They stuck us with multiple extra fees. I will never fly spirit again

Check in online was easy. Seats aren’t very comfortable

Fecal matter in seat back pocket. Presumably from a kids diaper.

Worst airline to travel with. They treat you like a prisoner in a jailhouse barking out orders and threats. Nickle and dime you to the same price or higher than a respectable airline like one of the big 3 . Might as well fly with standard airlines

Well I mean u get what u pay for so 🤷‍♂️

Over an hour delay in departure but I was notified beforehand. Another delay on tarmac upon arrival at LGA. We ended up departing the plane almost 2 hours later than expected

I fly Frontier because it’s affordable. I understand that the seats are tight and not the most comfortable…but that’s part of it. The problem with this flight was that there was a group of travelers directly behind me at the back of the plane who were ridiculously loud and obnoxious the entire flight. I’m pretty sure they were drunk and I could periodically smell an odd odor that I believe was one of them using a smokeless vape pen. The stewards had to remind them to keep quiet during the pre-flight instruction, but that was it. They never said another thing to them for the rest of the flight. It was a miserable.

I checked a bag because it was $5 less than carry on. They managed to lose my bag on a 2.5 hr direct flight! Frontier has no airport staff at baggage claim to help. As soon as I got home around 11 pm I tried to use their online system to file the claim for lost bag - system wouldn't take the # on my baggage claim ticket - said it was not the correct number. Also said that I had not checked a bag, which wasn't true - even my online boarding pass showed that I had checked a bag. Wasted about an hour on that process with no luck. Tried again in the morning - same thing. So tried online chat with Frontier bot - waited 35-40" twice to be connected to a baggage agent and it never happened. Eventually drove to PDX after work and waited 2 hrs for the Frontier ticket agents to arrive prior to the next Frontier flight out of PDX and FINALLY got some help from one of them, to take me to lost luggage area where I was able to retrive my bag. Probably took 4-5 hrs. of my time and endless frustration to get my bag. This was my first -- and LAST -- experience flying Frontier Airlines. Check-in was also extremely difficult and time consuming. The flight itself (and staff) were fine but everything else about the experience was a total disaster! The fact that Frontier literally has NO WAY to connect to a human voice for customer service (in this case for lost luggage) is the WORST!!!!!

Frontier is a crappy airline nothing about it is honest

I didn't get to do this flight l, hard to review

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Book cheap flights from St. Louis to Philadelphia

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Philadelphia found on KAYAK in the last 72 hours.
5/25Sat
nonstopFrontier
2h 14mSTL-PHL
$29
6/29Sat
nonstopFrontier
2h 12mSTL-PHL
$37
6/18Tue
nonstopAmerican Airlines
2h 17mSTL-PHL
$66
6/18Tue
1 stopSpirit Airlines
8h 23mSTL-PHL
$78
5/30Thu
1 stopSpirit Airlines
16h 55mSTL-PHL
$92
5/29Wed
1 stopDelta
7h 13mSTL-PHL
$98
5/31Fri
1 stopDelta
4h 43mSTL-PHL
$99
5/30Thu
nonstopAmerican Airlines
2h 10mSTL-PHL
$111
10/4Fri
2 stopsUnited Airlines
19h 17mSTL-PHL
$283
8/3Sat
2 stopsUnited Airlines
15h 42mSTL-PHL
$314

Search by stops

Search by airline

Search by price

Last minute flights from St. Louis to Philadelphia

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Philadelphia that are departing in the next 10 days.
5/20Mon
multi-stopFrontier
11h 49mSTL-PHL
5/22Wed
nonstopFrontier
2h 27mPHL-STL
$148
5/20Mon
multi-stopFrontier
9h 24mSTL-PHL
5/22Wed
nonstopFrontier
2h 27mPHL-STL
$160
5/21Tue
multi-stopSpirit Airlines
21h 50mSTL-PHL
5/23Thu
multi-stopSpirit Airlines
13h 09mPHL-STL
$278
5/19Sun
multi-stopSpirit Airlines
21h 51mSTL-PHL
5/23Thu
multi-stopSpirit Airlines
13h 09mPHL-STL
$358
5/21Tue
nonstopAmerican Airlines
2h 10mSTL-PHL
5/22Wed
nonstopAmerican Airlines
2h 38mPHL-STL
$397
5/21Tue
multi-stopAmerican Airlines
4h 15mSTL-PHL
5/22Wed
nonstopAmerican Airlines
2h 44mPHL-STL
$405
5/21Tue
multi-stopUnited Airlines
7h 03mSTL-PHL
5/22Wed
multi-stopUnited Airlines
4h 59mPHL-STL
$416
5/21Tue
multi-stopUnited Airlines
7h 54mSTL-PHL
5/22Wed
multi-stopUnited Airlines
5h 14mPHL-STL
$629
5/20Mon
multi-stopDelta
6h 49mSTL-PHL
5/22Wed
multi-stopDelta
9h 15mPHL-STL
$1,038
5/21Tue
multi-stopDelta
9h 11mSTL-PHL
5/22Wed
multi-stopDelta
10h 57mPHL-STL
$2,375

Search by stops

Search by airline

Search by price

St. Louis - Philadelphia Flights

Departure:

St. Louis (undefined)United States

Destination:

Philadelphia (PHL)United States

Return flight deals:

Philadelphia - St. Louis

Cabin classes:

$847
$2,784
$1,590
$168