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MCI - STL

Find cheap flights from Kansas City to St. Louis from $91

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 5/30. 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
Sun 5/26
Sun 6/2

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 44,979,812 times on KAYAK, and here is why:

Save 22% 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
5:25 pm - 10:28 amMCI-STL
17h 03m1 stop
6:19 pm - 6:01 pmSTL-MCI
23h 42m1 stop
$175Spirit Airlines
Find Deal
Fri, May 17 - Sun, May 19
5:25 pm - 10:28 amMCI-STL
17h 03m1 stop
7:30 pm - 6:01 pmSTL-MCI
22h 31m2 stops
$206Spirit Airlines
Find Deal
Fri, May 17 - Sun, May 19
5:25 pm - 10:28 amMCI-STL
17h 03m1 stop
7:30 pm - 6:01 pmSTL-MCI
22h 31m2 stops
$210Spirit Airlines
Find Deal
Fri, May 17 - Sun, May 19
10:25 am - 5:21 pmMCI-STL
6h 56m1 stop
6:13 pm - 10:25 pmSTL-MCI
4h 12m1 stop
$224American Airlines
Find Deal
Fri, Jul 5 - Sat, Jul 20
9:15 pm - 5:11 pmMCI-STL
19h 56m1 stop
6:05 pm - 5:17 pmSTL-MCI
23h 12m1 stop
$225Sun Country Air
Find Deal
Thu, Jun 6 - Sun, Jun 9
6:51 pm - 9:39 amMCI-STL
14h 48m1 stop
11:36 am - 6:10 amSTL-MCI
18h 34m1 stop
$227Spirit Airlines
Find Deal
Mon, May 20 - Wed, May 22
5:59 pm - 10:52 pmMCI-STL
4h 53m1 stop
6:04 am - 4:46 pmSTL-MCI
10h 42m1 stop
$240American Airlines
Find Deal
Fri, Jul 12 - Tue, Jul 16
5:20 am - 1:37 pmMCI-STL
8h 17m1 stop
11:06 pm - 8:15 amSTL-MCI
9h 09m1 stop
Tue, May 21 - Thu, May 23
7:44 pm - 9:36 amMCI-STL
13h 52m1 stop
11:06 pm - 8:15 amSTL-MCI
9h 09m1 stop
$260Frontier
Find Deal
Thu, May 16 - Thu, May 23
5:25 pm - 4:25 pmMCI-STL
23h 00m3 stops
4:45 pm - 6:01 pmSTL-MCI
25h 16m3 stops
Fri, May 17 - Sun, May 19

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 $175 on Spirit Airlines, followed by American Airlines ($224). One-way flight deals have also been found from as low as $91 on American Airlines and from $96 on Spirit Airlines.

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

Each day, there are between 2 and 3 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 6:00 am and most flights take off in the morning. Each week, there are 20 flights. The most frequent day of departure is Wednesday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.

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 6:10 am and will be landing in St. Louis at 7:10 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 6:35 pm and lands at 7:40 pm.

Good to know

Low season

February

High season

January

Cheapest flight

$91
Best time to beat the crowds with an average 44% drop in price.
Most popular time to fly with an average 7% increase in price.
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 $91 for a one-way ticket and $175 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 14898 reviews
8.0crew
7.1entertainment
7.6boarding
6.6food
7.2comfort
Airline reviews

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

6.0 GoodAnonymous, Apr 2024SPI - ORD
Read more about American Airlines reviews

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

The flight was great but board was a nightmare. The gate was changed 4 times during the layover period

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

Cold air blew constantly on my legs almost making me numb.

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

Delayd flight out of atl as always miss my conection in dfw no flight untill next day

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.
5/30Thu
1 stopAmerican Airlines
8h 55mMCI-STL
$91
5/15Wed
1 stopSpirit Airlines
24h 54mMCI-STL
$96
7/17Wed
1 stopAmerican Airlines
9h 58mMCI-STL
$97
5/21Tue
1 stopSpirit Airlines
8h 17mMCI-STL
$107
5/13Mon
1 stopSpirit Airlines
14h 48mMCI-STL
$122
5/30Thu
3 stops
29h 28mMCI-STL
$251
7/17Wed
3 stops
29h 03mMCI-STL
$258
6/8Sat
1 stopDelta
16h 45mMCI-STL
$264
5/22Wed
2 stopsUnited Airlines
15h 09mMCI-STL
$368
5/22Wed
2 stopsUnited Airlines
15h 09mMCI-STL
$369

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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.
4/26Fri
multi-stopAmerican Airlines
5h 36mMCI-STL
4/29Mon
multi-stopAmerican Airlines
6h 24mSTL-MCI
$422
4/26Fri
multi-stopAmerican Airlines
5h 38mMCI-STL
4/29Mon
multi-stopAmerican Airlines
9h 04mSTL-MCI
$847
4/28Sun
multi-stopUnited Airlines
9h 46mMCI-STL
4/29Mon
multi-stopUnited Airlines
9h 30mSTL-MCI
$1,086
4/26Fri
multi-stopUnited Airlines
9h 04mMCI-STL
4/29Mon
multi-stopUnited Airlines
10h 11mSTL-MCI
$1,198
4/26Fri
multi-stop
18h 08mMCI-STL
4/29Mon
multi-stop
18h 22mSTL-MCI
$1,222
4/28Sun
multi-stopUnited Airlines
10h 18mMCI-STL
4/29Mon
multi-stopUnited Airlines
8h 06mSTL-MCI
$1,246

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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:

$183

Compare transportation modes for Kansas City to St. Louis

Average priceAverage duration
Flights3h 39m
Buses$1174h 15m