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SAT - STL

$67 Find cheap flights from San Antonio to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to St. Louis departing on 9/24. 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
sáb. 6/29
sáb. 7/6

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to St. Louis, 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 San Antonio to St. Louis, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 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 San Antonio to St. Louis (SAT-STL)

 
These are the cheapest deals for flights from San Antonio to St. Louis currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from San Antonio to St. Louis

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from San Antonio to St. Louis.

Recent one-way flight deals from San Antonio to St. Louis

Only flying one-way? Below are some of the best one-way flight deals from San Antonio to St. Louis found on KAYAK recently.

Recent last minute flight deals from San Antonio to St. Louis

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from San Antonio to St. Louis.

Recent direct flight deals from San Antonio to St. Louis

The latest deals for direct flights from San Antonio to St. Louis so you can sit back and relax without the need for a layover.

Cheap bus & train deals from San Antonio to St. Louis

Find recent round-trip train or bus tickets from San Antonio to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
2:41 pm - 10:14 pmSAT-STL
7h 33m1 stop
4:31 pm - 3:28 pmSTL-SAT
22h 57m1 stop
$145Spirit Airlines
Find Deal
mié., sep. 4 - lun., sep. 9
7:06 pm - 7:07 amSAT-STL
12h 01m1 stop
2:41 pm - 1:55 amSTL-SAT
11h 14m1 stop
lun., jun. 10 - lun., jun. 17
2:18 pm - 3:06 pmSAT-STL
24h 48m1 stop
8:02 pm - 7:04 pmSTL-SAT
23h 02m1 stop
mar., jul. 30 - mié., jul. 31
8:28 pm - 5:28 pmSAT-STL
21h 00m2 stops
3:23 pm - 12:59 amSTL-SAT
9h 36m1 stop
$211Spirit Airlines
Find Deal
vie., jul. 5 - mar., jul. 9
7:51 pm - 9:40 amSAT-STL
13h 49m1 stop
9:02 pm - 8:25 amSTL-SAT
11h 23m1 stop
$215Frontier
Find Deal
jue., jun. 27 - jue., jul. 4
9:04 pm - 10:42 amSAT-STL
13h 38m1 stop
3:37 pm - 8:22 amSTL-SAT
16h 45m1 stop
$221Frontier
Find Deal
vie., jun. 28 - dom., jun. 30
4:38 pm - 10:57 pmSAT-STL
6h 19m1 stop
3:18 pm - 10:00 pmSTL-SAT
6h 42m1 stop
$291American Airlines
Find Deal
sáb., jun. 29 - sáb., jul. 13
5:30 am - 2:18 pmSAT-STL
8h 48m2 stops
6:20 am - 11:01 amSTL-SAT
4h 41m1 stop
$446United Airlines
Find Deal
mar., jul. 30 - mié., jul. 31
5:15 am - 2:53 pmSAT-STL
9h 38m2 stops
6:15 am - 1:14 pmSTL-SAT
6h 59m1 stop
$461United Airlines
Find Deal
mié., sep. 4 - lun., sep. 9
6:00 am - 11:59 pmSAT-STL
17h 59m2 stops
9:47 am - 5:30 amSTL-SAT
19h 43m2 stops
$932Alaska Airlines
Find Deal
mar., jul. 30 - mié., jul. 31
8:41 pm - 10:46 amSAT-STL
14h 05m1 stop
$67Spirit Airlines
Find Deal
mar., sep. 24
8:34 pm - 7:07 amSAT-STL
10h 33m1 stop
$76Frontier
Find Deal
mié., jun. 5
8:34 pm - 7:07 amSAT-STL
10h 33m1 stop
$82Frontier
Find Deal
mié., jun. 5
10:00 pm - 7:57 pmSAT-STL
21h 57m1 stop
$110Frontier
Find Deal
mié., jul. 17
7:06 pm - 7:07 amSAT-STL
12h 01m1 stop
$111Frontier
Find Deal
lun., jun. 17
1:58 pm - 5:28 pmSAT-STL
27h 30m2 stops
$113Spirit Airlines
Find Deal
mié., jun. 26
5:21 am - 7:55 pmSAT-STL
38h 34m3 stops
mié., jun. 26
9:40 pm - 4:45 pmSAT-STL
19h 05m3 stops
mié., jun. 5
9:40 am - 4:29 pmSAT-STL
6h 49m2 stops
$280United Airlines
Find Deal
mar., jun. 4
6:10 am - 5:18 pmSAT-STL
11h 08m2 stops
$282American Airlines
Find Deal
mié., jun. 26
10:20 pm - 10:13 amSAT-STL
11h 53m1 stop
11:22 pm - 8:23 amSTL-SAT
9h 01m1 stop
$292Frontier
Find Deal
vie., may. 31 - dom., jun. 2
6:48 pm - 10:13 amSAT-STL
15h 25m1 stop
11:22 pm - 8:23 amSTL-SAT
9h 01m1 stop
$343Frontier
Find Deal
sáb., jun. 1 - dom., jun. 2
10:20 pm - 10:13 amSAT-STL
11h 53m1 stop
4:05 pm - 12:41 amSTL-SAT
8h 36m1 stop
vie., may. 31 - lun., jun. 3
5:30 am - 2:16 pmSAT-STL
8h 46m2 stops
3:10 pm - 11:12 pmSTL-SAT
8h 02m1 stop
$483United Airlines
Find Deal
sáb., jun. 1 - dom., jun. 2
5:30 am - 2:14 pmSAT-STL
8h 44m2 stops
6:15 am - 11:03 amSTL-SAT
4h 48m1 stop
$553United Airlines
Find Deal
vie., may. 31 - dom., jun. 2
5:30 am - 2:14 pmSAT-STL
8h 44m2 stops
6:30 am - 12:09 pmSTL-SAT
5h 39m1 stop
$568United Airlines
Find Deal
vie., may. 31 - dom., jun. 2
1:12 pm - 10:28 amSAT-STL
21h 16m2 stops
4:05 pm - 12:41 amSTL-SAT
8h 36m1 stop
$569Spirit Airlines
Find Deal
vie., may. 31 - lun., jun. 3
8:41 pm - 7:05 amSAT-STL
34h 24m3 stops
4:05 pm - 12:41 amSTL-SAT
8h 36m1 stop
vie., may. 31 - lun., jun. 3
10:49 pm - 11:45 amSAT-STL
36h 56m3 stops
4:45 pm - 12:41 amSTL-SAT
31h 56m3 stops
vie., may. 31 - dom., jun. 2
6:30 pm - 10:28 amSAT-STL
15h 58m1 stop
12:45 pm - 12:41 amSTL-SAT
35h 56m3 stops
vie., may. 31 - dom., jun. 2

Flights from San Antonio to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from San Antonio to St. Louis 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 San Antonio to St. Louis?

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Antonio to St. Louis, 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 San Antonio to St. Louis is April, where tickets cost $334 on average. On the other hand, the most expensive months are August and March, where the average cost of tickets is $618 and $501 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Antonio to St. Louis, 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 San Antonio to St. Louis, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 32 days before departure.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Spirit Airlines offered the best one-way deal for that route, at $67. KAYAK users also found San Antonio to St. Louis round-trip flights on Spirit Airlines from $145 and on Frontier from $215.

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

Each day, there are between 1 and 2 nonstop flights that take off from San Antonio and land in St. Louis, with an average flight time of 2h 05m. The most common departure time is 4:00 pm and most flights take off in the afternoon. Each week, there are 12 flights. The most frequent day of departure is Tuesday, when 17% of all weekly flights depart. The fewest flights depart on a Sunday.

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

Early birds can take the earliest flight from San Antonio at 5:00 am and will be landing in St. Louis at 7:05 am.

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

If you prefer to fly at night, the latest flight from San Antonio to St. Louis jets off at 5:45 pm and lands at 7:50 pm.

Good to know

Low season

August

High season

October

Cheapest flight

$67
Best time to beat the crowds but there is an average 46% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from San Antonio to St. Louis

When to book flights from San Antonio to St. Louis

Are your dates flexible? Find out the best times to travel from San Antonio to St. Louis 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 San Antonio to St. Louis

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

    In the last 3 days, the lowest price for a flight from San Antonio to St. Louis was $67 for a one-way ticket and $145 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

    San Antonio airport is called San Antonio and the only airport in St. Louis is Lambert-St Louis.

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

    We unfortunately don’t have that data for this specific route.

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

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

  • Which is the best airline for flights from San Antonio to St. Louis, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from San Antonio to St. Louis are United Airlines and American Airlines. With an average price for the route of $480 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $403 and an overall rating of 7.3.

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

    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 San Antonio to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from San Antonio 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 San Antonio to St. Louis?

    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 St. Louis with an airline and back to San Antonio with another airline. Booking your flights between San Antonio and STL 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 San Antonio to St. Louis?

    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 St. Louis from San Antonio up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from San Antonio to St. Louis?

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

Nonstop departures

San Antonio to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Nonstop returns

Lambert-St Louis to San Antonio

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights
See more direct flights

Top 4 airlines serving from San Antonio to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to St. Louis. 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 San Antonio to St. Louis? 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 10457 reviews
7.9Comfort
8.2Boarding
8.6Crew
7.4Food
8.0Entertainment
Airline reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

10.0 ExcellentMichael, May 2024SJC - ATL
Read more about Delta reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

They were an hour late and they didn’t have my wheelchair for me

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

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.

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

There was a group of school age passengers that were very loud and unruly with their chaperones were no where to be found.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

Trip was smooth bumpy from the wind but no issues at all the crew attendant was very pleasant and had great customer service

I liked everything about the flight. The service was excellent!

The customer service was excellent! Check-in, baggage check-in, boarding, the flight went very smooth.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

The flight was short. However, my bag was delayed and was put on another flight.

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Flight delayed over an over all day until it cancelled at 1:30am. Would not repeatedly delay that late. Offer hotel rooms and rebook early. Very difficult for families with small children

Missed the flight because of them and up geting a rental car

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

I arrived to the airport 2 hours before my American Airlines flight was scheduled to take off. I have TSA pre-check. The airport was crazy packed when I arrived. After momentarily standing in the pre-check line, the TSA agent said that I am not pre-check. Of course I said that I am because I entered my KTN number on all my traveling sites and programs. I had to get out of line and go back to the AA counter to discover that American Airlines did not add my KTN to my boarding pass. I had to call TSA to find out my number, then have AA enter it onto my boarding pass. The emblem would not load onto my boarding pass. By this time, I decided to use my Clear in order to get through TSA but the line was ridiculous long. By the time I made through TSA, I missed my 11:08am flight and was re-booked for the 5:30pm. This is after the AA employee told me I should have gotten to the airport early. AA use to be a dependable airline not I use them only if I have too.

Flight from SBP to DFW 1. They rerouted us through PHX 2. Delayed flight out of SBP for 3 hrs so we missed our connection Downgrade on rerouted flight. Back of the plane, center seats, didn't sit together 4. Return flight out of DFW same exact thing. Delayed, missed connection, Downgrade + they lost our luggage! A complete mess.

Do not eat the bagel! Otherwise, good albeit late, breakfast in first. Boarding downgrade only because flight was delayed due to plane change due to undisclosed problem with original aircraft. I did not use entertainment.

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

I am very disappointed with Frontier Airlines. They cancelled our flight because they couldn't find a crew member, and then didn't get us to our connecting flight. We had to cancel our whole vacation. We were promised flight and hotel vouchers, but they never sent them.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

Book cheap flights from San Antonio to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Antonio to St. Louis found on KAYAK in the last 72 hours.
9/24mar.
1 stopSpirit Airlines
14h 05mSAT-STL
$67
6/5mié.
1 stopFrontier
10h 33mSAT-STL
$76
6/5mié.
1 stopFrontier
10h 33mSAT-STL
$82
7/17mié.
1 stopFrontier
21h 57mSAT-STL
$110
6/17lun.
1 stopFrontier
12h 01mSAT-STL
$111
6/26mié.
2 stopsSpirit Airlines
27h 30mSAT-STL
$113
6/26mié.
3 stops
38h 34mSAT-STL
$131
6/5mié.
3 stops
19h 05mSAT-STL
$227
6/4mar.
2 stopsUnited Airlines
6h 49mSAT-STL
$280
6/26mié.
2 stopsAmerican Airlines
11h 08mSAT-STL
$282

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Last minute flights from San Antonio to St. Louis

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 San Antonio to St. Louis that are departing in the next 10 days.
5/31vie.
multi-stopFrontier
11h 53mSAT-STL
6/2dom.
multi-stopFrontier
9h 01mSTL-SAT
$292
6/1sáb.
multi-stopFrontier
15h 25mSAT-STL
6/2dom.
multi-stopFrontier
9h 01mSTL-SAT
$343
5/31vie.
multi-stop
11h 53mSAT-STL
6/3lun.
multi-stop
8h 36mSTL-SAT
$397
6/1sáb.
multi-stopUnited Airlines
8h 46mSAT-STL
6/2dom.
multi-stopUnited Airlines
8h 02mSTL-SAT
$483
5/31vie.
multi-stopUnited Airlines
8h 44mSAT-STL
6/2dom.
multi-stopUnited Airlines
4h 48mSTL-SAT
$553
5/31vie.
multi-stopUnited Airlines
8h 44mSAT-STL
6/2dom.
multi-stopUnited Airlines
5h 39mSTL-SAT
$568
5/31vie.
multi-stopSpirit Airlines
21h 16mSAT-STL
6/3lun.
multi-stopSpirit Airlines
8h 36mSTL-SAT
$569
5/31vie.
multi-stop
34h 24mSAT-STL
6/3lun.
multi-stop
8h 36mSTL-SAT
$602
5/31vie.
multi-stop
36h 56mSAT-STL
6/2dom.
multi-stop
31h 56mSTL-SAT
$647
5/31vie.
multi-stop
15h 58mSAT-STL
6/2dom.
multi-stop
35h 56mSTL-SAT
$651

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San Antonio - St. Louis Flights

Departure:

San Antonio (SAT)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - San Antonio

Cabin classes: