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Uncover the best deals on Kansas City to St Louis flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest MCI - STL Flights
Useful information for finding best airline tickets from Kansas City International to Lambert St Louis International on your next trip.
Cheapest Round Trip Flight
$601
Southwest Airlines
• 1 stop
• 13h 35m
Jul 18 – Jul 25
The cheapest round trip flight from Kansas City to St Louis (MCI-STL-MCI) is currently $601
Cheapest One way Flight
$427
Southwest Airlines
• 1 stop
• 7h 35m
Jul 13
The cheapest one way flight from Kansas City to St Louis (MCI-STL) is currently $427
Cheapest Direct Flight
$603
Southwest Airlines
• nonstop
• 1h 45m
Jul 18
The cheapest nonstop flight from Kansas City to St Louis (MCI-STL) is currently $603
Fastest Flight
1h 45m
The fastest nonstop flight from Kansas City to St Louis (MCI-STL) takes 1h 45m
Top Airlines Flying from Kansas City to St Louis
Latest Flight Deals from Kansas City (MCI) to St Louis (STL)
Compare and book low fare round-trip air tickets from Kansas City to St Louis. Ideal for travelers with confirmed return itineraries.
Jul 18 - Jul 25, Economy
Kansas City → St Louis
13h 35m
3:35 PM - 11:50 PM • 1 stop
Kansas City → St Louis
7h 30m
6:05 PM - 10:55 PM • 1 stop
Southwest Airlines
Jul 18 - Jul 25, Economy
Kansas City → St Louis
20h 15m
5:45 AM - 6:00 PM • 1 stop
Kansas City → St Louis
7h 30m
6:05 PM - 10:55 PM • 1 stop
Southwest Airlines
Jul 18 - Jul 25, Economy
Kansas City → St Louis
15h 45m
6:10 AM - 3:55 PM • 1 stop
Kansas City → St Louis
7h 30m
6:05 PM - 10:55 PM • 1 stop
Southwest Airlines
Jul 18 - Jul 25, Economy
Kansas City → St Louis
16h 40m
5:40 AM - 3:40 PM • 1 stop
Kansas City → St Louis
7h 30m
6:05 PM - 10:55 PM • 1 stop
Southwest Airlines
Jul 18 - Jul 25, Economy
Kansas City → St Louis
5h 50m
6:00 PM - 9:50 PM • 1 stop
Kansas City → St Louis
1h 45m
4:20 PM - 5:25 PM • nonstop
Southwest Airlines
Explore competitive one-way airfare options for MCI - STL flights. Best suited for flexible or open-ended travel plans.
Flying to St Louis soon? We've surfaced some of the most affordable last-minute flights from Kansas City to St Louis, ideal for urgent plans or spontaneous trips.
Jul 18 - Jul 25, Economy
Kansas City → St Louis
13h 35m
3:35 PM - 11:50 PM • 1 stop
Kansas City → St Louis
7h 30m
6:05 PM - 10:55 PM • 1 stop
Southwest Airlines
Jul 18 - Jul 25, Economy
Kansas City → St Louis
20h 15m
5:45 AM - 6:00 PM • 1 stop
Kansas City → St Louis
7h 30m
6:05 PM - 10:55 PM • 1 stop
Southwest Airlines
Jul 18 - Jul 25, Economy
Kansas City → St Louis
15h 45m
6:10 AM - 3:55 PM • 1 stop
Kansas City → St Louis
7h 30m
6:05 PM - 10:55 PM • 1 stop
Southwest Airlines
Jul 18 - Jul 25, Economy
Kansas City → St Louis
16h 40m
5:40 AM - 3:40 PM • 1 stop
Kansas City → St Louis
7h 30m
6:05 PM - 10:55 PM • 1 stop
Southwest Airlines
Jul 18 - Jul 25, Economy
Kansas City → St Louis
5h 50m
6:00 PM - 9:50 PM • 1 stop
Kansas City → St Louis
1h 45m
4:20 PM - 5:25 PM • nonstop
Southwest Airlines
Looking for the fastest way to St Louis? These direct flight options from MCI to STL offer both convenience and value—no layovers, just straight to your destination.
Jul 18 - Jul 25, Economy
Kansas City → St Louis
1h 45m
4:50 PM - 5:55 PM • nonstop
Kansas City → St Louis
1h 45m
4:20 PM - 5:25 PM • nonstop
Southwest Airlines
Jul 18 - Jul 25, Economy
Kansas City → St Louis
1h 45m
6:35 AM - 7:40 AM • nonstop
Kansas City → St Louis
1h 50m
8:45 PM - 9:55 PM • nonstop
Southwest Airlines
FAQs on Kansas City to St Louis Flights
What are the airports in Kansas City?
MCI
What’s the most popular airline flying from MCI to STL?
The most popular airline flying from Kansas City to St Louis are
Can I fly from MCI to STL non-stop?
Yes, you can fly MCI to STL non-stop on
Which airlines fly nonstop between Kansas City and St Louis?
The non-stop flights between Kansas City and St Louis are .
What’s the earliest departure time from MCI to STL Airport?
The earliest flight leaves MCI at 5:40 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my Kansas City to St Louis flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from MCI to STL?
Read the fare rules of the Kansas City to St Louis air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Kansas City and St Louis?
operate flights between Kansas City and St Louis
How long does a flight from Kansas City to St Louis take?
It takes approximately 1 hour to fly non-stop from MCI to STL, which is 236.77 miles by air.
Which airlines provide the cheapest flights from Kansas City (MCI) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from MCI were found on WN : USD 1002
Do I need a passport to fly between MCI and STL?
No
What’s the latest departure time from MCI to STL ?
The last flight leaves MCI at 8:25 pm
Kansas City (MCI) to St Louis (STL): Airport Information
| Origin Airport | Kansas City International , Kansas City, US |
| Destination Airport | Lambert St Louis International , St Louis, US |
| Distance | 237 miles |
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