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Cheap flights from Kansas City to St. Louis from $70

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kansas City to St. Louis departing on 1/31. 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 Kansas City to St. Louis

Cheap round-trip flights

These are some of the best round-trip flight deals from Kansas City to St. Louis that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Kansas City to St. Louis.

Cheap last minute flights

Planning a quick getaway from Kansas City to St. Louis? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to St. Louis, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Kansas City to St. Louis

Find recent round-trip train or bus tickets from Kansas City to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
6:39 pm - 9:16 amMCI-STL
14h 37m1 stop
4:28 pm - 2:55 pmSTL-MCI
22h 27m1 stop
Fri, Jan 17 - Sun, Jan 19
4:17 pm - 2:42 pmMCI-STL
22h 25m1 stop
6:59 pm - 7:35 pmSTL-MCI
24h 36m1 stop
Mon, Mar 3 - Fri, Mar 7
5:32 am - 10:19 pmMCI-STL
16h 47m1 stop
5:40 am - 7:22 pmSTL-MCI
13h 42m1 stop
$313American Airlines
Find Deal
Mon, Jan 6 - Wed, Jan 8
8:28 pm - 8:13 amMCI-STL
11h 45m1 stop
4:28 pm - 2:55 pmSTL-MCI
22h 27m1 stop
Sun, Jan 5 - Thu, Jan 9
4:50 pm - 10:26 pmMCI-STL
5h 36m1 stop
3:10 pm - 7:22 pmSTL-MCI
4h 12m1 stop
$330American Airlines
Find Deal
Sat, Jan 25 - Mon, Jan 27
5:25 am - 6:35 amMCI-STL
1h 10mnonstop
7:05 pm - 12:05 amSTL-MCI
5h 00m1 stop
$331Southwest
Find Deal
Thu, Feb 13 - Mon, Feb 17
9:50 am - 4:30 pmMCI-STL
6h 40m1 stop
6:00 pm - 10:22 pmSTL-MCI
4h 22m1 stop
$340American Airlines
Find Deal
Sun, Jan 19 - Sun, Jan 26
1:05 pm - 2:10 pmMCI-STL
1h 05mnonstop
1:05 pm - 6:50 pmSTL-MCI
5h 45m1 stop
$351Southwest
Find Deal
Fri, Jan 17 - Sun, Jan 19
8:00 am - 3:38 pmMCI-STL
7h 38m1 stop
8:00 am - 9:50 pmSTL-MCI
13h 50m1 stop
$403United Airlines
Find Deal
Tue, Jan 21 - Wed, Jan 22
5:10 pm - 12:16 pmMCI-STL
19h 06m2 stops
1:02 pm - 9:50 pmSTL-MCI
8h 48m1 stop
$475United Airlines
Find Deal
Mon, Jan 6 - Wed, Jan 8
6:39 pm - 9:16 amMCI-STL
14h 37m1 stop
$70Frontier
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Fri, Jan 31
7:00 am - 8:10 amMCI-STL
1h 10mnonstop
$84Southwest
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Tue, Jan 21
4:17 pm - 2:42 pmMCI-STL
22h 25m1 stop
$143Spirit Airlines
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Sat, Feb 22
7:11 pm - 3:21 pmMCI-STL
20h 10m2 stops
$146Spirit Airlines
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Mon, Jan 6
5:35 am - 2:22 pmMCI-STL
8h 47m1 stop
$147American Airlines
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Tue, Jan 7
12:15 pm - 4:20 pmMCI-STL
4h 05m1 stop
$165American Airlines
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Thu, Jan 23
6:40 pm - 2:14 pmMCI-STL
19h 34m1 stop
$207United Airlines
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Tue, Jan 21
3:26 pm - 3:38 pmMCI-STL
24h 12m1 stop
$222United Airlines
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Mon, Jan 20
5:45 pm - 10:54 amMCI-STL
17h 09m1 stop
$253Delta
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Fri, Jan 24
5:40 pm - 10:22 amMCI-STL
16h 42m1 stop
$299Delta
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Fri, Jun 20
8:28 pm - 8:13 amMCI-STL
11h 45m1 stop
10:09 pm - 1:53 pmSTL-MCI
15h 44m1 stop
$566Frontier
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Thu, Dec 26 - Thu, Jan 2
2:53 pm - 8:13 amMCI-STL
17h 20m1 stop
10:09 pm - 1:38 pmSTL-MCI
15h 29m1 stop
$619Frontier
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Fri, Dec 27 - Sun, Dec 29
12:45 pm - 6:45 pmMCI-STL
6h 00m1 stop
3:45 pm - 4:50 pmSTL-MCI
1h 05mnonstop
$629Southwest
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Fri, Dec 27 - Sun, Dec 29
5:30 am - 6:45 amMCI-STL
1h 15mnonstop
10:45 pm - 11:55 pmSTL-MCI
1h 10mnonstop
$630Southwest
Find Deal
Fri, Dec 27 - Sun, Dec 29
10:36 am - 4:39 pmMCI-STL
6h 03m1 stop
11:42 am - 5:28 pmSTL-MCI
5h 46m1 stop
$684American Airlines
Find Deal
Wed, Dec 25 - Fri, Dec 27
4:15 pm - 10:25 pmMCI-STL
6h 10m1 stop
10:45 pm - 11:55 pmSTL-MCI
1h 10mnonstop
$809Southwest
Find Deal
Thu, Dec 26 - Thu, Jan 2
5:30 am - 6:45 amMCI-STL
1h 15mnonstop
10:45 pm - 11:55 pmSTL-MCI
1h 10mnonstop
$810Southwest
Find Deal
Thu, Dec 26 - Thu, Jan 2
10:00 am - 7:57 pmMCI-STL
9h 57m1 stop
6:25 am - 4:14 pmSTL-MCI
9h 49m2 stops
$1,120United Airlines
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Thu, Dec 26 - Thu, Jan 2
11:27 am - 9:45 pmMCI-STL
10h 18m1 stop
6:25 am - 4:14 pmSTL-MCI
9h 49m2 stops
$1,148United Airlines
Find Deal
Fri, Dec 27 - Wed, Jan 1
10:00 am - 8:26 pmMCI-STL
10h 26m2 stops
8:00 am - 5:40 pmSTL-MCI
9h 40m1 stop
$1,415United Airlines
Find Deal
Wed, Dec 25 - Fri, Dec 27
3:40 pm - 4:45 pmMCI-STL
1h 05mnonstop
11:00 am - 12:10 pmSTL-MCI
1h 10mnonstop
$512Southwest
Find Deal
Sat, Jan 25 - Mon, Jan 27
5:20 pm - 6:25 pmMCI-STL
1h 05mnonstop
8:20 pm - 9:30 pmSTL-MCI
1h 10mnonstop
$532Southwest
Find Deal
Fri, Jan 17 - Sun, Jan 19
6:25 pm - 7:30 pmMCI-STL
1h 05mnonstop
2:05 pm - 3:10 pmSTL-MCI
1h 05mnonstop
$672Southwest
Find Deal
Fri, Jan 3 - Mon, Jan 6

United Airlines flights from Kansas City to St. Louis

Our best United Airlines deals on Kansas City to St. Louis flight tickets
United Airlines
Jan 21
MCI8:00 amKansas City
7h 38m
1 stop
STL3:38 pmLambert-St Louis
Jan 22
STL8:00 amLambert-St Louis
13h 50m
1 stop
MCI9:50 pmKansas City
United Airlines
Jan 6
MCI5:10 pmKansas City
19h 06m
2 stops
STL12:16 pmLambert-St Louis
Jan 8
STL1:02 pmLambert-St Louis
8h 48m
1 stop
MCI9:50 pmKansas City
United Airlines
Jan 21
MCI5:45 amKansas City
11h 51m
2 stops
STL5:36 pmLambert-St Louis
Jan 22
STL6:30 amLambert-St Louis
11h 08m
1 stop
MCI5:38 pmKansas City

American Airlines flights from Kansas City to St. Louis

Our best American Airlines deals on Kansas City to St. Louis flight tickets
American Airlines
Jan 6
MCI5:32 amKansas City
16h 47m
1 stop
STL10:19 pmLambert-St Louis
Jan 8
STL5:40 amLambert-St Louis
13h 42m
1 stop
MCI7:22 pmKansas City
American Airlines
Jan 25
MCI4:50 pmKansas City
5h 36m
1 stop
STL10:26 pmLambert-St Louis
Jan 27
STL3:10 pmLambert-St Louis
4h 12m
1 stop
MCI7:22 pmKansas City
American Airlines
Jan 19
MCI9:50 amKansas City
6h 40m
1 stop
STL4:30 pmLambert-St Louis
Jan 26
STL6:00 pmLambert-St Louis
4h 22m
1 stop
MCI10:22 pmKansas City

See travel insights to St. Louis from

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

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 Kansas City to Lambert-St Louis flight route?

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

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

There are 1 cabin classes available to choose from on Kansas City to Lambert-St Louis 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 Kansas City to St. Louis flights?

You could potentially save up to 16% on your flight if you consider stops on a Kansas City to St. Louis flight.

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

As of December 2024, prices for Kansas City to St. Louis flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from Kansas City to St. Louis

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

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

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

Best Price Found

$70

Fastest flight time

1h 00m

Direct flights

Wed, Thu, Sat and Sun

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Kansas City in the past 72 hours is $70. The best round-trip flight deal from Kansas City to St. Louis found on momondo in the last 72 hours is $300.
The fastest flight from Kansas City to St. Louis takes 1h 00m
Direct flights go from Kansas City to St. Louis on Wednesday, Thursday, Saturday and Sunday. The only airline offering direct flights is Southwest.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • How far is Kansas City to Lambert-St Louis by plane?

    The straight-line distance from Kansas City to Lambert-St Louis is 237.1 mi. 1h 05m is a normal flight duration for this route.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kansas City Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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


Best airlines flying from Kansas City to St. Louis

Compare and see reviews for airlines that fly from Kansas City to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $176Free CancellationRating
8.1
4,804 reviews
Search Southwest flights
American AirlinesPriceFrom $247Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Southwest Flights From Kansas City to St. Louis

    Across 14 Southwest flights from Kansas City to St. Louis this week, the average price was $481, with the best Southwest deals starting from $176 round-trip. 4,804 users have rated Southwest on momondo, with an average score of 8.1/10.


Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Kansas City to St. Louis. momondo saves you time and could save you money on your trip.

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

Flights from Kansas City to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Kansas City.

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

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Kansas City and alert you when they change.


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