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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 4/28. 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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0 bags

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Find the cheapest flights from St. Louis to Kansas City

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Kansas City.
8:55 pm - 10:00 pmSTL-MCI
1h 05mnonstop
4:50 pm - 5:50 pmMCI-STL
1h 00mnonstop
$97Southwest
Find Deal
Tue, Apr 22 - Tue, Apr 29
10:15 am - 11:25 amSTL-MCI
1h 10mnonstop
7:35 am - 11:50 amMCI-STL
4h 15m1 stop
$107Southwest
Find Deal
Tue, Apr 22 - Tue, Apr 29
6:51 pm - 7:37 pmSTL-MCI
24h 46m1 stop
8:35 pm - 9:06 amMCI-STL
12h 31m1 stop
$219Frontier
Find Deal
Fri, Apr 11 - Sun, Apr 13
12:37 pm - 7:45 pmSTL-MCI
7h 08m1 stop
8:35 pm - 9:06 amMCI-STL
12h 31m1 stop
$258Frontier
Find Deal
Sun, Apr 6 - Sun, Apr 13
5:45 am - 4:37 pmSTL-MCI
10h 52m1 stop
5:42 am - 9:37 amMCI-STL
3h 55m1 stop
$333American Airlines
Find Deal
Mon, Apr 21 - Mon, Apr 28
9:50 am - 3:26 pmSTL-MCI
29h 36m3 stops
4:59 pm - 5:15 pmMCI-STL
24h 16m1 stop
Thu, Apr 10 - Mon, Apr 14
9:50 am - 3:26 pmSTL-MCI
29h 36m3 stops
4:23 pm - 5:15 pmMCI-STL
24h 52m2 stops
Thu, Apr 10 - Mon, Apr 14
6:10 pm - 3:26 pmSTL-MCI
21h 16m2 stops
4:59 pm - 5:15 pmMCI-STL
24h 16m1 stop
$355Spirit Airlines
Find Deal
Thu, Apr 10 - Mon, Apr 14
5:19 am - 10:23 amSTL-MCI
5h 04m1 stop
5:30 am - 9:49 amMCI-STL
4h 19m1 stop
$361American Airlines
Find Deal
Fri, May 9 - Fri, May 16
6:10 pm - 4:04 pmSTL-MCI
21h 54m1 stop
4:59 pm - 5:15 pmMCI-STL
24h 16m1 stop
$401Spirit Airlines
Find Deal
Thu, Apr 10 - Mon, Apr 14

American Airlines flights from St. Louis to Kansas City

Our best American Airlines deals on St. Louis to Kansas City flight tickets
American Airlines
Apr 21
STL5:45 amLambert-St Louis
10h 52m
1 stop
MCI4:37 pmKansas City
Apr 28
MCI5:42 amKansas City
3h 55m
1 stop
STL9:37 amLambert-St Louis
American Airlines
May 9
STL5:19 amLambert-St Louis
5h 04m
1 stop
MCI10:23 amKansas City
May 16
MCI5:30 amKansas City
4h 19m
1 stop
STL9:49 amLambert-St Louis
American Airlines
May 9
STL5:19 amLambert-St Louis
5h 04m
1 stop
MCI10:23 amKansas City
May 16
MCI5:30 amKansas City
7h 37m
1 stop
STL1:07 pmLambert-St Louis

Spirit Airlines flights from St. Louis to Kansas City

Our best Spirit Airlines deals on St. Louis to Kansas City flight tickets
Spirit Airlines
Apr 10
STL6:10 pmLambert-St Louis
21h 16m
2 stops
MCI3:26 pmKansas City
Apr 14
MCI4:59 pmKansas City
24h 16m
1 stop
STL5:15 pmLambert-St Louis
Spirit Airlines
Apr 10
STL6:10 pmLambert-St Louis
21h 54m
1 stop
MCI4:04 pmKansas City
Apr 14
MCI4:59 pmKansas City
24h 16m
1 stop
STL5:15 pmLambert-St Louis
Spirit Airlines
Apr 3
STL6:47 pmLambert-St Louis
20h 39m
1 stop
MCI3:26 pmKansas City
Apr 23
MCI3:59 pmKansas City
25h 16m
2 stops
STL5:15 pmLambert-St Louis

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, April 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 $112. If you’re not able to fly to Kansas City in April, then March is your next best option. Flight prices from St. Louis to Kansas City during March average around $139.

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 Monday when prices can be found for as low as $329. 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 $547. 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 $327 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around $435. 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.

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

As of March 2025, prices for St. Louis to Kansas City flights are approximately 53% more expensive 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

Mon, Tue, Wed, Fri, Sat and Sun

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 $97.
The fastest flight from St. Louis to Kansas City takes 1h 05m
Direct flights go from St. Louis to Kansas City on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Southwest.
There is 1 airport near Kansas City: Kansas City (MCI)

  • 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 $132Free CancellationRating
8.0
4,273 reviews
Search Southwest flights
American AirlinesPriceFrom $286Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Southwest Flights From St. Louis to Kansas City

    Southwest flies from St. Louis to Kansas City around 15 times per week, with 4,274 momondo users rating the airline 8.0/10. The cheapest Southwest deal from St. Louis to Kansas City in the last 72 hours was $132 (round-trip), much lower than the average airfare cost of $331 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
Kansas City
Overland Park
Independence
Lawrence
Olathe
Blue Springs
Liberty
Lenexa
Lee's Summit
Shawnee
Excelsior Springs
Leavenworth
Belton
North Kansas City
Warrensburg
Cameron
Gladstone
Lansing
Missouri City

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.


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