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Cheap flights from St. Louis to Kansas City from $65

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 8/4. 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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Find the cheapest flights from St. Louis to Kansas City

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:33 pm - 5:29 pm
STL
-
MCI
22h 56m
1 stop
Frontier Logo
6:24 pm - 5:30 pm
MCI
-
STL
23h 06m
1 stop
$134Frontier
Thu, Jun 4 - Mon, Jun 8
Frontier Logo
5:27 pm - 5:29 pm
STL
-
MCI
24h 02m
1 stop
Frontier Logo
6:16 pm - 8:52 am
MCI
-
STL
14h 36m
1 stop
$159Frontier
Fri, Jun 5 - Fri, Jun 12
Frontier Logo
6:31 pm - 5:21 pm
STL
-
MCI
22h 50m
1 stop
Frontier Logo
1:45 pm - 6:18 pm
MCI
-
STL
28h 33m
2 stops
$214Frontier
Tue, Jun 9 - Tue, Jun 16
Frontier Logo
6:33 pm - 1:49 pm
STL
-
MCI
19h 16m
2 stops
Frontier Logo
6:24 pm - 5:30 pm
MCI
-
STL
23h 06m
1 stop
$224Frontier
Thu, Jun 4 - Mon, Jun 8
Frontier Logo
8:08 pm - 12:55 pm
STL
-
MCI
16h 47m
1 stop
Frontier Logo
1:50 pm - 2:07 pm
MCI
-
STL
24h 17m
1 stop
$239Frontier
Mon, Jul 13 - Thu, Jul 16
Frontier Logo
4:52 pm - 12:55 pm
STL
-
MCI
20h 03m
2 stops
Frontier Logo
6:16 pm - 5:37 pm
MCI
-
STL
23h 21m
1 stop
$248Frontier
Fri, Jul 24 - Mon, Jul 27
Frontier Logo
4:52 pm - 12:55 pm
STL
-
MCI
20h 03m
2 stops
Frontier Logo
1:45 pm - 7:23 pm
MCI
-
STL
5h 38m
1 stop
$249Frontier
Mon, Aug 10 - Wed, Aug 12
Frontier Logo
8:08 pm - 12:55 pm
STL
-
MCI
16h 47m
1 stop
Frontier Logo
1:45 pm - 7:23 pm
MCI
-
STL
5h 38m
1 stop
$261Frontier
Mon, Jul 20 - Wed, Jul 22
Frontier Logo
2:52 pm - 12:55 pm
STL
-
MCI
22h 03m
1 stop
Frontier Logo
1:45 pm - 7:23 pm
MCI
-
STL
5h 38m
1 stop
$262Frontier
Sat, Jul 25 - Mon, Jul 27
Frontier Logo
9:06 pm - 5:29 pm
STL
-
MCI
20h 23m
2 stops
Frontier Logo
6:16 pm - 8:52 am
MCI
-
STL
14h 36m
1 stop
$264Frontier
Fri, Jun 5 - Fri, Jun 12

American Airlines flights from St. Louis to Kansas City

Our best American Airlines deals on St. Louis to Kansas City flight tickets
American Airlines
Jun 9
STL7:03 amLambert-St Louis
6h 15m
1 stop
MCI1:18 pmKansas City
Jun 16
MCI11:29 amKansas City
5h 04m
1 stop
STL4:33 pmLambert-St Louis
$371
American Airlines
Jun 2
STL5:25 amLambert-St Louis
5h 13m
1 stop
MCI10:38 amKansas City
Jun 4
MCI11:29 amKansas City
7h 01m
1 stop
STL6:30 pmLambert-St Louis
$401
American Airlines
May 16
STL9:34 amLambert-St Louis
7h 33m
1 stop
MCI5:07 pmKansas City
May 16
MCI6:07 pmKansas City
4h 12m
1 stop
STL10:19 pmLambert-St Louis
$727

United Airlines flights from St. Louis to Kansas City

Our best United Airlines deals on St. Louis to Kansas City flight tickets
United Airlines
Jun 4
STL7:22 amLambert-St Louis
5h 00m
1 stop
MCI12:22 pmKansas City
Jun 7
MCI7:53 amKansas City
4h 18m
1 stop
STL12:11 pmLambert-St Louis
$375
United Airlines
Jun 3
STL10:25 amLambert-St Louis
3h 55m
1 stop
MCI2:20 pmKansas City
Jul 2
MCI7:53 amKansas City
6h 30m
1 stop
STL2:23 pmLambert-St Louis
$380
United Airlines
Jun 2
STL9:14 amLambert-St Louis
5h 06m
1 stop
MCI2:20 pmKansas City
Jun 3
MCI11:25 amKansas City
4h 21m
1 stop
STL3:46 pmLambert-St Louis
$409

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 May 11, 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

Cheapest round-trip

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Thu 6/4

6:33 pm-5:29 pm

1 stop22h 56m

Kansas City

Mon 6/8

6:24 pm-5:30 pm

1 stop23h 06m

$134

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Fri 6/5

5:27 pm-5:29 pm

1 stop24h 02m

Kansas City

Fri 6/12

6:16 pm-8:52 am

1 stop14h 36m

$159

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Tue 6/9

6:31 pm-5:21 pm

1 stop22h 50m

Kansas City

Tue 6/16

1:45 pm-6:18 pm

2 stops28h 33m

$214

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Thu 6/4

6:33 pm-1:49 pm

2 stops19h 16m

Kansas City

Mon 6/8

6:24 pm-5:30 pm

1 stop23h 06m

$224

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Mon 7/13

8:08 pm-12:55 pm

1 stop16h 47m

Kansas City

Thu 7/16

1:50 pm-2:07 pm

1 stop24h 17m

$239

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Fri 7/24

4:52 pm-12:55 pm

2 stops20h 03m

Kansas City

Mon 7/27

6:16 pm-5:37 pm

1 stop23h 21m

$248

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Mon 8/10

4:52 pm-12:55 pm

2 stops20h 03m

Kansas City

Wed 8/12

1:45 pm-7:23 pm

1 stop5h 38m

$249
Quickest round-trip

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Mon 7/20

8:08 pm-12:55 pm

1 stop16h 47m

Kansas City

Wed 7/22

1:45 pm-7:23 pm

1 stop5h 38m

$261

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Sat 7/25

2:52 pm-12:55 pm

1 stop22h 03m

Kansas City

Mon 7/27

1:45 pm-7:23 pm

1 stop5h 38m

$262

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Fri 6/5

9:06 pm-5:29 pm

2 stops20h 23m

Kansas City

Fri 6/12

6:16 pm-8:52 am

1 stop14h 36m

$264

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 typical price of a round-trip flight between St. Louis and Kansas City?

What is the cheapest month to fly to Kansas City?

In general, December 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 $0. If you’re not able to fly to Kansas City in December, then January is your next best option. Flight prices from St. Louis to Kansas City during January average around $181.

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 $372. 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 $431. 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 at noon is the least expensive time of day to depart. momondo users have found prices as low as $286 when looking at flights departing at noon. Try not to purchase tickets in the evening because they tend to be around $724. 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

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?

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

$236

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 $236. The best round-trip flight deal from St. Louis to Kansas City found on momondo in the last 72 hours is $502.
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

Frequently asked questions about flying from St. Louis to Kansas City

  • 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 $114Free CancellationRating
8.0
4,298 reviews
Search Southwest flights

  • Southwest Flights From St. Louis to Kansas City

    Southwest flies from St. Louis to Kansas City around 14 times per week, with 4,298 momondo users rating the airline 8.0/10. The cheapest Southwest deal from St. Louis to Kansas City in the last 72 hours was $114 (round-trip), much lower than the average airfare cost of $413 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
Independence
Lawrence
Lenexa
Blue Springs
Olathe
Liberty
North Kansas City
Lee's Summit
Gladstone
Belton
Leavenworth
Shawnee
Warrensburg
Excelsior Springs
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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