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Cheap flights from St. Louis to Kansas City from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Kansas City departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Kansas City

Cheap round-trip flights

Southwest Logo
2:25 pm - 3:35 pmSTL-MCI
1h 10mnonstop
Southwest Logo
6:15 am - 7:30 amMCI-STL
1h 15mnonstop
$160Southwest
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Wed, Nov 12 - Sat, Nov 15
Southwest Logo
8:45 am - 2:40 pmSTL-MCI
5h 55m1 stop
Southwest Logo
6:15 am - 7:30 amMCI-STL
1h 15mnonstop
$165Southwest
Find Deal
Wed, Nov 12 - Sat, Nov 15
Southwest Logo
1:10 pm - 6:40 pmSTL-MCI
5h 30m1 stop
Southwest Logo
7:40 am - 1:40 pmMCI-STL
6h 00m1 stop
$170Southwest
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Wed, Nov 12 - Sat, Nov 15
American Airlines Logo
7:01 am - 2:01 pmSTL-MCI
7h 00m1 stop
American Airlines Logo
5:39 am - 1:12 pmMCI-STL
7h 33m1 stop
$176American Airlines
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Tue, Aug 12 - Wed, Aug 13
American Airlines Logo
1:17 pm - 8:41 pmSTL-MCI
7h 24m1 stop
American Airlines Logo
5:39 am - 3:49 pmMCI-STL
10h 10m1 stop
$257American Airlines
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Tue, Aug 5 - Wed, Aug 6
Spirit Airlines Logo
5:26 pm - 3:17 pmSTL-MCI
21h 51m2 stops
Spirit Airlines Logo
4:23 pm - 9:52 amMCI-STL
17h 29m2 stops
$268Spirit Airlines
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Tue, Aug 5 - Thu, Aug 7
United Airlines Logo
6:33 am - 11:14 pmSTL-MCI
16h 41m1 stop
United Airlines Logo
9:15 am - 10:45 pmMCI-STL
13h 30m1 stop
$316United Airlines
Find Deal
Tue, Aug 12 - Wed, Aug 13
Spirit Airlines Logo
5:26 pm - 3:17 pmSTL-MCI
21h 51m2 stops
Spirit Airlines Logo
4:23 pm - 9:52 amMCI-STL
17h 29m3 stops
$320Spirit Airlines
Find Deal
Tue, Aug 5 - Thu, Aug 7
United Airlines Logo
6:15 pm - 2:22 pmSTL-MCI
20h 07m2 stops
United Airlines Logo
6:27 pm - 3:47 pmMCI-STL
21h 20m1 stop
$382United Airlines
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Tue, Aug 12 - Wed, Aug 13
Logo
10:47 am - 3:17 pmSTL-MCI
28h 30m3 stops
Logo
6:04 pm - 6:41 pmMCI-STL
24h 37m3 stops
$448
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Fri, Jul 25 - Sat, Jul 26

Spirit Airlines flights from St. Louis to Kansas City

Our best Spirit Airlines deals on St. Louis to Kansas City flight tickets
Spirit Airlines
Aug 5
STL5:26 pmLambert-St Louis
21h 51m
2 stops
MCI3:17 pmKansas City
Aug 7
MCI4:23 pmKansas City
17h 29m
2 stops
STL9:52 amLambert-St Louis
$268
Find similar
Spirit Airlines
Aug 5
STL5:26 pmLambert-St Louis
21h 51m
2 stops
MCI3:17 pmKansas City
Aug 7
MCI4:23 pmKansas City
17h 29m
3 stops
STL9:52 amLambert-St Louis
$320
Find similar
Spirit Airlines
Aug 29
STL2:30 pmLambert-St Louis
23h 31m
2 stops
MCI2:01 pmKansas City
Aug 31
MCI2:56 pmKansas City
22h 36m
2 stops
STL1:32 pmLambert-St Louis
$342
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Southwest flights from St. Louis to Kansas City

Our best Southwest deals on St. Louis to Kansas City flight tickets
Southwest
Nov 12
STL2:25 pmLambert-St Louis
1h 10m
MCI3:35 pmKansas City
Nov 15
MCI6:15 amKansas City
1h 15m
STL7:30 amLambert-St Louis
$160
Find similar
Southwest
Nov 12
STL8:45 amLambert-St Louis
5h 55m
1 stop
MCI2:40 pmKansas City
Nov 15
MCI6:15 amKansas City
1h 15m
STL7:30 amLambert-St Louis
$165
Find similar
Southwest
Nov 12
STL1:10 pmLambert-St Louis
5h 30m
1 stop
MCI6:40 pmKansas City
Nov 15
MCI7:40 amKansas City
6h 00m
1 stop
STL1:40 pmLambert-St Louis
$170
Find similar

See travel insights to Kansas City from

How to get the cheapest flight ticket from St. Louis to Kansas City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Kansas City?

In general, March is the cheapest month to fly from St. Louis to Kansas City. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $132. If you’re not able to fly to Kansas City in March, then June is your next best option. Flight prices from St. Louis to Kansas City during June average around $214.

What is the cheapest day to depart on your flight to Kansas City?

The cheapest day to depart on your flight to Kansas City is on a Tuesday when prices can be found for as low as $352. This is often the case because there is less demand to fly during this day of the week. Flights from St. Louis to Kansas City on a Sunday will generally be more expensive and average around $515. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Kansas City?

Flying to Kansas City from St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $351 when looking at flights departing in the evening. Try not to purchase tickets in the afternoon because they tend to be around $415. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Lambert-St Louis to Kansas City flight route?

Fly from Lambert-St Louis to Kansas City for the best Lambert-St Louis - Kansas City flight prices

What cabin class options are available on Lambert-St Louis to Kansas City flights?

There are 1 cabin classes available to choose from on Lambert-St Louis to Kansas City flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Kansas City flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Kansas City.

How have St. Louis to Kansas City flight prices changed over time?

As of July 2025, prices for St. Louis to Kansas City flights are approximately 69% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Kansas City

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Kansas City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Kansas City (STL to MCI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Kansas City

Best Price Found

$49

Fastest flight time

1h 05m

Direct flights

Every day

Airports in Kansas City

1 airport
The best one-way flight to Kansas City from St. Louis in the past 72 hours is $49. The best round-trip flight deal from St. Louis to Kansas City found on momondo in the last 72 hours is $160.
The fastest flight from St. Louis to Kansas City takes 1h 05m
Direct flights go from St. Louis to Kansas City every day.
There is 1 airport near Kansas City: Kansas City (MCI)
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  • How far is Lambert-St Louis to Kansas City by plane?

    There are 237.1 mi between Lambert-St Louis and Kansas City. By plane, this route typically takes 1h 05m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Kansas City Airport?

    Prices for flights from Lambert-St Louis Airport to Kansas City Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Kansas City Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Kansas City Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Kansas City Airport.

  • What documentation or ID do you need to fly to Kansas City Airport?

    The travel and health documents you'll need for your trip to Kansas City Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kansas City Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Kansas City?

  • What is the most popular airline from St. Louis to Kansas City?

Best airlines flying from St. Louis to Kansas City

Compare and see reviews for airlines that fly from St. Louis to Kansas City with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $112Free CancellationRating
8.0
4,247 reviews
Search Southwest flights

  • Southwest Flights From St. Louis to Kansas City

    Southwest flies from St. Louis to Kansas City around 12 times per week, with 4,246 momondo users rating the airline 8.0/10. The cheapest Southwest deal from St. Louis to Kansas City in the last 72 hours was $112 (round-trip), much lower than the average airfare cost of $330 for Southwest flights on this route.

Traveling to a place near Kansas City?

Book flights to Kansas City if you plan to visit one of these locations
Topeka
Overland Park
Kansas City
Lawrence
Independence
Olathe
Liberty
Blue Springs
Lenexa
Lee's Summit
Shawnee
Excelsior Springs
Leavenworth
North Kansas City
Warrensburg
Belton
Cameron
Gladstone
Missouri City
Lansing

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Kansas City?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Kansas City from St. Louis.

Can I find flights from St. Louis to Kansas City with flexible booking policies on momondo?

momondo does allow users to show only those flights to Kansas City from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Kansas City?

Once all potential St. Louis to Kansas City flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Kansas City right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Kansas City from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Kansas City trip

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