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Cheap flights from St. Louis to Kansas City from $67

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 1/10. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
10:15 am - 11:25 am
STL
-
MCI
1h 10mnonstop
Southwest Logo
6:50 am - 12:20 pm
MCI
-
STL
5h 30m1 stop
$181Southwest
Thu, Jan 8 - Mon, Jan 12
Southwest Logo
10:15 am - 5:00 pm
STL
-
MCI
6h 45m2 stops
Southwest Logo
6:10 am - 7:25 am
MCI
-
STL
1h 15mnonstop
$186Southwest
Mon, Jan 12 - Tue, Jan 13
Frontier Logo
3:43 pm - 10:03 am
STL
-
MCI
18h 20m1 stop
Frontier Logo
8:26 pm - 6:51 am
MCI
-
STL
34h 25m2 stops
$190Frontier
Thu, Jan 8 - Mon, Jan 12
Southwest Logo
8:15 am - 2:20 pm
STL
-
MCI
6h 05m1 stop
Southwest Logo
7:50 am - 1:35 pm
MCI
-
STL
5h 45m1 stop
$191Southwest
Thu, Jan 8 - Mon, Jan 12
Frontier Logo
7:43 pm - 6:51 pm
STL
-
MCI
23h 08m1 stop
Frontier Logo
8:46 pm - 10:02 am
MCI
-
STL
13h 16m1 stop
$195Frontier
Sat, Mar 7 - Mon, Mar 9
Southwest Logo
10:15 am - 5:00 pm
STL
-
MCI
6h 45m2 stops
Southwest Logo
3:25 pm - 9:45 pm
MCI
-
STL
6h 20m1 stop
$196Southwest
Mon, Jan 12 - Tue, Jan 13
Multiple Airlines Logo
5:11 pm - 10:59 pm
STL
-
MCI
29h 48m1 stop
Multiple Airlines Logo
5:04 pm - 10:34 pm
MCI
-
STL
29h 30m1 stop
$200Multiple Airlines
Tue, Jan 6 - Tue, Jan 13
Southwest Logo
10:15 am - 5:00 pm
STL
-
MCI
6h 45m2 stops
Southwest Logo
11:00 am - 5:05 pm
MCI
-
STL
6h 05m2 stops
$201Southwest
Mon, Jan 12 - Tue, Jan 13
Multiple Airlines Logo
5:11 pm - 5:10 pm
STL
-
MCI
23h 59m2 stops
Multiple Airlines Logo
5:04 pm - 10:34 pm
MCI
-
STL
29h 30m1 stop
$206Multiple Airlines
Tue, Jan 6 - Tue, Jan 13
Multiple Airlines Logo
5:11 pm - 4:09 pm
STL
-
MCI
22h 58m1 stop
Multiple Airlines Logo
11:26 am - 6:51 am
MCI
-
STL
19h 25m2 stops
$239Multiple Airlines
Mon, Jan 19 - Thu, Jan 22

United Airlines flights from St. Louis to Kansas City

Our best United Airlines deals on St. Louis to Kansas City flight tickets
United Airlines
Jan 7
STL9:57 amLambert-St Louis
4h 30m
1 stop
MCI2:27 pmKansas City
Jan 8
MCI1:42 pmKansas City
7h 16m
1 stop
STL8:58 pmLambert-St Louis
$251
Find similar
United Airlines
Jan 8
STL6:00 amLambert-St Louis
8h 11m
1 stop
MCI2:11 pmKansas City
Jan 12
MCI4:25 pmKansas City
5h 35m
1 stop
STL10:00 pmLambert-St Louis
$281
Find similar
United Airlines
Jan 22
STL12:44 pmLambert-St Louis
7h 12m
1 stop
MCI7:56 pmKansas City
Jan 29
MCI3:00 pmKansas City
7h 00m
1 stop
STL10:00 pmLambert-St Louis
$331
Find similar

American Airlines flights from St. Louis to Kansas City

Our best American Airlines deals on St. Louis to Kansas City flight tickets
American Airlines
Jan 7
STL6:00 amLambert-St Louis
12h 03m
1 stop
MCI6:03 pmKansas City
Jan 8
MCI9:42 amKansas City
5h 05m
1 stop
STL2:47 pmLambert-St Louis
$327
Find similar
American Airlines
Dec 24
STL9:08 amLambert-St Louis
33h 43m
1 stop
MCI6:51 pmKansas City
Dec 28
MCI6:00 amKansas City
4h 50m
1 stop
STL10:50 amLambert-St Louis
$539
Find similar

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 December 10, 2025.
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 1/8

10:15 am-11:25 am

Nonstop1h 10m

Kansas City

Mon 1/12

6:50 am-12:20 pm

1 stop5h 30m

$181

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Mon 1/12

10:15 am-5:00 pm

2 stops6h 45m

Kansas City

Tue 1/13

6:10 am-7:25 am

Nonstop1h 15m

$186

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Thu 1/8

3:43 pm-10:03 am

1 stop18h 20m

Kansas City

Mon 1/12

8:26 pm-6:51 am

2 stops34h 25m

$190

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Thu 1/8

8:15 am-2:20 pm

1 stop6h 05m

Kansas City

Mon 1/12

7:50 am-1:35 pm

1 stop5h 45m

$191

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Sat 3/7

7:43 pm-6:51 pm

1 stop23h 08m

Kansas City

Mon 3/9

8:46 pm-10:02 am

1 stop13h 16m

$195

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Mon 1/12

10:15 am-5:00 pm

2 stops6h 45m

Kansas City

Tue 1/13

3:25 pm-9:45 pm

1 stop6h 20m

$196

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Tue 1/6

5:11 pm-10:59 pm

1 stop29h 48m

Kansas City

Tue 1/13

5:04 pm-10:34 pm

1 stop29h 30m

$200

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Mon 1/12

10:15 am-5:00 pm

2 stops6h 45m

Kansas City

Tue 1/13

11:00 am-5:05 pm

2 stops6h 05m

$201

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Tue 1/6

5:11 pm-5:10 pm

2 stops23h 59m

Kansas City

Tue 1/13

5:04 pm-10:34 pm

1 stop29h 30m

$206

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Mon 1/19

5:11 pm-4:09 pm

1 stop22h 58m

Kansas City

Thu 1/22

11:26 am-6:51 am

2 stops19h 25m

$239

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 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 Saturday when prices can be found for as low as $335. 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 Wednesday will generally be more expensive and average around $464. 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 $339 when looking at flights departing in the afternoon. Try not to purchase tickets at noon because they tend to be around $394. 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 82% 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?

As of December 2025, prices for St. Louis to Kansas City flights are approximately 407% 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

Fastest flight time

1h 05m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Kansas City

1 airport
The fastest flight from St. Louis to Kansas City takes 1h 05m
Direct flights go from St. Louis to Kansas City on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Kansas City: 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
7.9
4,253 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 4,253 momondo users rating the airline 7.9/10. 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 $298 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
Lawrence
Independence
Olathe
Liberty
Blue Springs
Lenexa
Lee's Summit
North Kansas City
Excelsior Springs
Leavenworth
Shawnee
Warrensburg
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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