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Cheap flights from St. Louis to Kansas City from $68

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 2/4. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:01 pm - 11:33 pm
STL
-
MCI
25h 32m1 stop
Multiple Airlines Logo
8:28 pm - 1:09 pm
MCI
-
STL
16h 41m1 stop
$180Multiple Airlines
Thu, Feb 5 - Thu, Feb 12
Multiple Airlines Logo
5:42 pm - 4:09 pm
STL
-
MCI
22h 27m1 stop
Multiple Airlines Logo
5:04 pm - 10:27 pm
MCI
-
STL
29h 23m1 stop
$194Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
Frontier Logo
10:01 pm - 7:51 pm
STL
-
MCI
21h 50m2 stops
Frontier Logo
8:28 pm - 1:09 pm
MCI
-
STL
16h 41m1 stop
$203Frontier
Thu, Feb 5 - Thu, Feb 12
Multiple Airlines Logo
8:17 pm - 10:30 am
STL
-
MCI
14h 13m2 stops
Multiple Airlines Logo
9:24 pm - 1:09 pm
MCI
-
STL
15h 45m1 stop
$235Multiple Airlines
Wed, Feb 25 - Thu, Feb 26
Southwest Logo
8:55 pm - 10:05 pm
STL
-
MCI
1h 10mnonstop
Southwest Logo
4:50 pm - 5:55 pm
MCI
-
STL
1h 05mnonstop
$241Southwest
Wed, Mar 11 - Wed, Mar 25
Multiple Airlines Logo
3:49 pm - 3:29 pm
STL
-
MCI
23h 40m1 stop
Multiple Airlines Logo
8:40 pm - 9:49 am
MCI
-
STL
13h 09m1 stop
$244Multiple Airlines
Thu, Mar 5 - Sun, Mar 8
American Airlines Logo
5:12 am - 10:12 am
STL
-
MCI
5h 00m1 stop
American Airlines Logo
7:57 pm - 11:48 pm
MCI
-
STL
3h 51m1 stop
$247American Airlines
Wed, Mar 11 - Wed, Mar 25
Frontier Logo
8:22 pm - 9:53 am
STL
-
MCI
13h 31m1 stop
Frontier Logo
5:48 pm - 11:59 pm
MCI
-
STL
30h 11m2 stops
$267Frontier
Sat, Feb 7 - Wed, Feb 11
Multiple Airlines Logo
8:12 pm - 7:55 pm
STL
-
MCI
23h 43m1 stop
Multiple Airlines Logo
11:26 am - 7:07 am
MCI
-
STL
19h 41m2 stops
$270Multiple Airlines
Wed, Mar 11 - Wed, Mar 25
American Airlines Logo
8:00 am - 12:06 pm
STL
-
MCI
4h 06m1 stop
American Airlines Logo
7:57 pm - 11:48 pm
MCI
-
STL
3h 51m1 stop
$275American Airlines
Wed, Feb 25 - Thu, Feb 26

American Airlines flights from St. Louis to Kansas City

Our best American Airlines deals on St. Louis to Kansas City flight tickets
American Airlines
Mar 11
STL5:12 amLambert-St Louis
5h 00m
1 stop
MCI10:12 amKansas City
Mar 25
MCI7:57 pmKansas City
3h 51m
1 stop
STL11:48 pmLambert-St Louis
$247
American Airlines
Feb 25
STL8:00 amLambert-St Louis
4h 06m
1 stop
MCI12:06 pmKansas City
Feb 26
MCI7:57 pmKansas City
3h 51m
1 stop
STL11:48 pmLambert-St Louis
$275
American Airlines
Mar 1
STL6:38 pmLambert-St Louis
4h 04m
1 stop
MCI10:42 pmKansas City
Mar 2
MCI4:16 pmKansas City
4h 56m
1 stop
STL9:12 pmLambert-St Louis
$337

Southwest flights from St. Louis to Kansas City

Our best Southwest deals on St. Louis to Kansas City flight tickets
Southwest
Mar 11
STL8:55 pmLambert-St Louis
1h 10m
MCI10:05 pmKansas City
Mar 25
MCI4:50 pmKansas City
1h 05m
STL5:55 pmLambert-St Louis
$241
Southwest
Feb 16
STL10:15 pmLambert-St Louis
1h 10m
MCI11:25 pmKansas City
Feb 18
MCI6:10 amKansas City
1h 15m
STL7:25 amLambert-St Louis
$280
Southwest
Feb 16
STL5:50 pmLambert-St Louis
5h 25m
1 stop
MCI11:15 pmKansas City
Feb 18
MCI3:55 pmKansas City
1h 05m
STL5:00 pmLambert-St Louis
$281

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Kansas City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 8, 2026.
Use the filters below to find and compare flights from St. Louis to Kansas City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Thu 2/5

10:01 pm-11:33 pm

1 stop25h 32m

Kansas City

Thu 2/12

8:28 pm-1:09 pm

1 stop16h 41m

$180

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Tue 2/3

5:42 pm-4:09 pm

1 stop22h 27m

Kansas City

Tue 2/10

5:04 pm-10:27 pm

1 stop29h 23m

$194

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Thu 2/5

10:01 pm-7:51 pm

2 stops21h 50m

Kansas City

Thu 2/12

8:28 pm-1:09 pm

1 stop16h 41m

$203

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Wed 2/25

8:17 pm-10:30 am

2 stops14h 13m

Kansas City

Thu 2/26

9:24 pm-1:09 pm

1 stop15h 45m

$235

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Wed 3/11

8:55 pm-10:05 pm

Nonstop1h 10m

Kansas City

Wed 3/25

4:50 pm-5:55 pm

Nonstop1h 05m

$241

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Thu 3/5

3:49 pm-3:29 pm

1 stop23h 40m

Kansas City

Sun 3/8

8:40 pm-9:49 am

1 stop13h 09m

$244

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Wed 3/11

5:12 am-10:12 am

1 stop5h 00m

Kansas City

Wed 3/25

7:57 pm-11:48 pm

1 stop3h 51m

$247

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Sat 2/7

8:22 pm-9:53 am

1 stop13h 31m

Kansas City

Wed 2/11

5:48 pm-11:59 pm

2 stops30h 11m

$267

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Wed 3/11

8:12 pm-7:55 pm

1 stop23h 43m

Kansas City

Wed 3/25

11:26 am-7:07 am

2 stops19h 41m

$270

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Wed 2/25

8:00 am-12:06 pm

1 stop4h 06m

Kansas City

Thu 2/26

7:57 pm-11:48 pm

1 stop3h 51m

$275

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 day to depart on your flight to Kansas City?

The cheapest day to depart on your flight to Kansas City is on a Saturday when prices can be found for as low as $345. 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 Friday will generally be more expensive and average around $408. 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 afternoon is the least expensive time of day to depart. momondo users have found prices as low as $330 when looking at flights departing in the afternoon. Try not to purchase tickets in the morning because they tend to be around $372. 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 is only 1 cabin class 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?

You could potentially save up to 18% on your flight if you consider stops on a St. Louis to Kansas City flight.

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

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

$138

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 $138. The best round-trip flight deal from St. Louis to Kansas City found on momondo in the last 72 hours is $347.
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 in Kansas City. From St. Louis there are direct flights to Kansas City (MCI).
Search flight deals

  • 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 $97Free CancellationRating
8.0
4,250 reviews
Search Southwest flights

  • Southwest Flights From St. Louis to Kansas City

    Southwest flies from St. Louis to Kansas City around 10 times per week, with 4,250 momondo users rating the airline 8.0/10. The cheapest Southwest deal from St. Louis to Kansas City in the last 72 hours was $97 (round-trip), much lower than the average airfare cost of $260 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
Overland Park
Topeka
Kansas City
Independence
Lawrence
Olathe
Liberty
Blue Springs
Lenexa
Lee's Summit
North Kansas City
Excelsior Springs
Leavenworth
Warrensburg
Shawnee
Belton
Gladstone
Cameron
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.

An easier way to manage your Kansas City trip

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