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MCI - STL

$108 Find cheap flights from Kansas City 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 Kansas City to St. Louis departing on 6/19. 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 6/29
Sat 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 Kansas City 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 Kansas City 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 Kansas City to St. Louis (MCI-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kansas City to St. Louis 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
6:51 pm - 5:30 pmMCI-STL
22h 39m1 stop
4:31 pm - 4:56 pmSTL-MCI
24h 25m1 stop
$171Spirit Airlines
Find Deal
Fri, Sep 13 - Mon, Sep 23
5:10 am - 7:22 pmMCI-STL
14h 12m1 stop
6:22 pm - 5:59 pmSTL-MCI
23h 37m1 stop
$244Spirit Airlines
Find Deal
Thu, Jun 27 - Thu, Jul 4
8:00 am - 5:25 pmMCI-STL
9h 25m1 stop
5:45 pm - 5:33 pmSTL-MCI
23h 48m1 stop
$257Sun Country Air
Find Deal
Sun, Jun 23 - Sun, Jun 30
6:49 pm - 10:57 amMCI-STL
16h 08m2 stops
2:41 pm - 6:09 amSTL-MCI
15h 28m1 stop
$274Spirit Airlines
Find Deal
Mon, Jun 24 - Mon, Jul 1
7:08 am - 5:18 pmMCI-STL
10h 10m1 stop
7:00 am - 3:28 pmSTL-MCI
8h 28m1 stop
$290American Airlines
Find Deal
Fri, Jun 28 - Fri, Jul 5
5:48 am - 10:32 amMCI-STL
4h 44m1 stop
5:27 pm - 11:07 pmSTL-MCI
5h 40m1 stop
$310American Airlines
Find Deal
Mon, Jul 1 - Mon, Jul 1
6:49 pm - 2:50 pmMCI-STL
20h 01m3 stops
10:24 am - 5:24 pmSTL-MCI
7h 00m1 stop
Fri, Jun 28 - Fri, Jul 5
6:49 pm - 2:50 pmMCI-STL
20h 01m3 stops
3:07 pm - 3:55 pmSTL-MCI
24h 48m2 stops
Fri, Jun 28 - Fri, Jul 5
6:00 am - 3:40 pmMCI-STL
9h 40m1 stop
5:30 pm - 4:11 pmSTL-MCI
22h 41m2 stops
$461United Airlines
Find Deal
Thu, Jun 27 - Thu, Jul 4
6:44 pm - 12:22 pmMCI-STL
17h 38m1 stop
5:20 pm - 2:50 pmSTL-MCI
21h 30m2 stops
$540United Airlines
Find Deal
Fri, Sep 13 - Mon, Sep 23

Flights from Kansas City to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from Kansas City 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 Kansas City to St. Louis?

The average price of all flights from Kansas City to St. Louis clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to St. Louis on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Kansas City to St. Louis. For your return ticket, we recommend flying on a Monday and avoiding Wednesdays for the best deals.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Kansas City to St. Louis found by KAYAK users in the last 72 hours was for $171 on Spirit Airlines, followed by Sun Country Air ($257). One-way flight deals have also been found from as low as $108 on American Airlines and from $118 on Sun Country Air.

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

Each day, there are between 3 and 4 nonstop flights that take off from Kansas City and land in St. Louis, with an average flight time of 1h 00m. The most common departure time is 5:00 pm and most flights take off in the morning. Each week, there are 24 flights. The most frequent day of departure is Friday, when 17% of all weekly flights depart. The fewest flights depart on a Sunday.

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

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

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

Early birds can take the earliest flight from Kansas City at 5:30 am and will be landing in St. Louis at 6:30 am.

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

If you prefer to fly at night, the latest flight from Kansas City to St. Louis jets off at 6:50 pm and lands at 7:50 pm.

Good to know

Low season

December

High season

April

Cheapest flight

$108
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly and prices are also 29% lower on average.
Flight from Kansas City to St. Louis

When to book flights from Kansas City to St. Louis

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

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

    In the last 3 days, the lowest price for a flight from Kansas City to St. Louis was $108 for a one-way ticket and $171 for a round-trip.

  • Do I need a passport to fly between Kansas City 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 aircraft models fly most regularly from Kansas City to St. Louis?

    The Boeing 737-700 Passenger/BBJ1 (winglets) is the aircraft model that flies most regularly on the Kansas City to St. Louis flight route.

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

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

  • How does KAYAK find such low prices on flights from Kansas City 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 Kansas City to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Kansas City 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 Kansas City 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 Kansas City with another airline. Booking your flights between Kansas City 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 Kansas City 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 Kansas City 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 Kansas City to St. Louis?

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

Nonstop departures

Kansas City 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 Kansas City

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 airline flying from Kansas City to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Kansas City 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 Kansas City 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.
7.3
American AirlinesOverall score based on 14284 reviews
7.2Comfort
7.6Boarding
8.0Crew
6.6Food
7.1Entertainment
Airline reviews

28 hour delay at Fort Worth/Dallas airport, part due to weather which was unavoidable, but various other reasons - no pilot, no fa, mechanical problem, plane too small, too big, crew out of flying time, seat configuration problems.... endless and hourly updates with a different excuse. Finally told us about 3.00 am, that the flight was delayed to hours later.

2.0 MediocreAnonymous, May 2024MSY - DFW
Read more about American Airlines reviews

28 hour delay at Fort Worth/Dallas airport, part due to weather which was unavoidable, but various other reasons - no pilot, no fa, mechanical problem, plane too small, too big, crew out of flying time, seat configuration problems.... endless and hourly updates with a different excuse. Finally told us about 3.00 am, that the flight was delayed to hours later.

Experience was bad. 3.5 hour delay for a 2.5 hour trip. There was no r Transparency about the reason for the delay and it was done 30 mins at a time.

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

AA1537 the AC was not working properly. It was very hot and uncomfortable.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

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

Was lucky to have a employee at the AA checkin counter that had compassion and understood they ordeal that we went through with our original flight being diverted, needing to stay in the aircraft and then flying to the original destination; adding hours to the trip and forcing us to miss our connection and our rebooked connection. She was able to get up on standby on the highest priority on the next flight to the closest airport we need to be at and it all worked out despite being many hours late.

Delayed so that missed connecting flight. Connecting flight was also delayed on the tarmac but they closed the gate before the rescheduled time.

Book cheap flights from Kansas City to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Kansas City to St. Louis found on KAYAK in the last 72 hours.
6/19Wed
1 stopAmerican Airlines
10h 10mMCI-STL
$108
7/2Tue
1 stopAmerican Airlines
10h 10mMCI-STL
$117
6/18Tue
1 stopSun Country Air
25h 51mMCI-STL
$118
6/12Wed
2 stopsSpirit Airlines
24h 00mMCI-STL
$140
6/12Wed
1 stopSpirit Airlines
25h 54mMCI-STL
$157
6/19Wed
2 stops
14h 07mMCI-STL
$158
6/18Tue
3 stops
10h 55mMCI-STL
$166
7/4Thu
2 stops
18h 44mMCI-STL
$168
6/12Wed
3 stops
43h 22mMCI-STL
$170
6/19Wed
3 stops
22h 37mMCI-STL
$194

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Last minute flights from Kansas City 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 Kansas City to St. Louis that are departing in the next 10 days.
5/31Fri
multi-stopAmerican Airlines
7h 36mMCI-STL
6/1Sat
multi-stopAmerican Airlines
4h 56mSTL-MCI
$515
5/31Fri
multi-stopSpirit Airlines
17h 03mMCI-STL
6/1Sat
multi-stopSpirit Airlines
24h 24mSTL-MCI
$732
5/31Fri
multi-stop
17h 03mMCI-STL
6/1Sat
multi-stop
32h 31mSTL-MCI
$768
5/31Fri
multi-stop
27h 28mMCI-STL
6/1Sat
multi-stop
32h 31mSTL-MCI
$821
5/31Fri
multi-stop
10h 45mMCI-STL
6/1Sat
multi-stop
18h 31mSTL-MCI
$948
6/1Sat
multi-stopSpirit Airlines
29h 49mMCI-STL
6/2Sun
multi-stopSpirit Airlines
22h 31mSTL-MCI
$1,006
6/1Sat
multi-stopUnited Airlines
9h 30mMCI-STL
6/2Sun
multi-stopUnited Airlines
4h 24mSTL-MCI
$1,022
6/1Sat
multi-stopAmerican Airlines
10h 18mMCI-STL
6/2Sun
multi-stopAmerican Airlines
8h 35mSTL-MCI
$2,018

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Kansas City - St. Louis Flights

Departure:

Kansas City (MCI)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Kansas City

Cabin classes:

$537