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Cheap flights from Kansas City to St. Louis from $69

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 12/11. 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.
11:45 am - 12:45 pmMCI-STL
1h 00mnonstop
2:05 pm - 3:10 pmSTL-MCI
1h 05mnonstop
$153Southwest
Find Deal
Wed, Dec 25 - Wed, Jan 1
11:45 am - 12:45 pmMCI-STL
1h 00mnonstop
4:05 pm - 10:15 pmSTL-MCI
6h 10m1 stop
$162Southwest
Find Deal
Wed, Dec 25 - Wed, Jan 1
1:00 pm - 5:00 pmMCI-STL
4h 00m1 stop
11:15 am - 12:25 pmSTL-MCI
1h 10mnonstop
$234Southwest
Find Deal
Sat, Dec 14 - Wed, Dec 18
2:30 pm - 3:30 pmMCI-STL
1h 00mnonstop
11:15 am - 12:25 pmSTL-MCI
1h 10mnonstop
$235Southwest
Find Deal
Sat, Dec 14 - Wed, Dec 18
5:23 am - 10:47 amMCI-STL
5h 24m1 stop
7:08 am - 11:58 amSTL-MCI
4h 50m1 stop
$330American Airlines
Find Deal
Fri, Dec 13 - Sun, Dec 15
12:48 pm - 7:29 pmMCI-STL
6h 41m1 stop
5:05 am - 9:53 amSTL-MCI
4h 48m1 stop
$350American Airlines
Find Deal
Fri, Dec 6 - Sun, Dec 8
6:50 pm - 10:27 amMCI-STL
15h 37m1 stop
4:31 pm - 12:51 pmSTL-MCI
20h 20m1 stop
$433United Airlines
Find Deal
Wed, Dec 11 - Tue, Dec 17
7:03 pm - 3:21 pmMCI-STL
20h 18m2 stops
12:15 pm - 1:18 pmSTL-MCI
25h 03m3 stops
Fri, Dec 13 - Fri, Dec 20
6:00 am - 8:41 pmMCI-STL
14h 41m1 stop
8:30 am - 9:55 pmSTL-MCI
13h 25m2 stops
$488United Airlines
Find Deal
Wed, Dec 11 - Tue, Dec 17
6:00 am - 3:21 pmMCI-STL
33h 21m3 stops
12:15 pm - 1:18 pmSTL-MCI
25h 03m3 stops
Fri, Dec 13 - Fri, Dec 20
11:45 am - 12:45 pmMCI-STL
1h 00mnonstop
$69Southwest
Find Deal
Wed, Dec 11
5:00 pm - 11:20 pmMCI-STL
6h 20m1 stop
$78Southwest
Find Deal
Wed, Dec 11
10:50 am - 5:15 pmMCI-STL
6h 25m2 stops
$83Southwest
Find Deal
Tue, Jan 14
7:45 pm - 9:37 amMCI-STL
13h 52m1 stop
$95Frontier
Find Deal
Fri, Feb 14
2:43 pm - 12:06 amMCI-STL
9h 23m1 stop
$130Frontier
Find Deal
Sat, Nov 23
4:52 pm - 3:21 pmMCI-STL
22h 29m2 stops
$147Spirit Airlines
Find Deal
Wed, Dec 11
2:29 pm - 3:21 pmMCI-STL
24h 52m1 stop
$158Spirit Airlines
Find Deal
Sat, Dec 7
7:02 am - 12:56 pmMCI-STL
5h 54m1 stop
$165American Airlines
Find Deal
Sat, Dec 14
11:02 pm - 4:45 pmMCI-STL
41h 43m3 stops
Wed, Dec 11
7:11 pm - 4:26 pmMCI-STL
21h 15m2 stops
Fri, Nov 22
10:24 pm - 11:25 pmMCI-STL
25h 01m1 stop
4:09 pm - 5:08 pmSTL-MCI
24h 59m1 stop
$388Frontier
Find Deal
Fri, Nov 15 - Mon, Nov 18
3:55 pm - 4:34 pmMCI-STL
24h 39m1 stop
5:27 pm - 12:56 pmSTL-MCI
19h 29m1 stop
Mon, Nov 18 - Wed, Nov 20
7:11 pm - 4:34 pmMCI-STL
21h 23m2 stops
4:10 pm - 5:13 amSTL-MCI
37h 03m3 stops
Mon, Nov 18 - Wed, Nov 20
3:55 pm - 3:30 pmMCI-STL
23h 35m3 stops
4:10 pm - 5:13 amSTL-MCI
37h 03m3 stops
Mon, Nov 18 - Wed, Nov 20
5:14 am - 10:56 amMCI-STL
5h 42m1 stop
11:35 am - 3:31 pmSTL-MCI
3h 56m1 stop
$628American Airlines
Find Deal
Sat, Nov 16 - Thu, Nov 21
10:39 am - 4:37 pmMCI-STL
5h 58m1 stop
5:19 pm - 10:32 pmSTL-MCI
5h 13m1 stop
$684American Airlines
Find Deal
Sat, Nov 16 - Mon, Nov 18
3:53 pm - 4:37 pmMCI-STL
24h 44m2 stops
10:10 am - 9:11 amSTL-MCI
23h 01m1 stop
$991United Airlines
Find Deal
Sat, Nov 16 - Thu, Nov 21
6:00 am - 3:58 pmMCI-STL
9h 58m2 stops
6:15 am - 4:08 pmSTL-MCI
9h 53m2 stops
$1,167United Airlines
Find Deal
Sat, Nov 16 - Thu, Nov 21
6:00 am - 10:27 amMCI-STL
4h 27m1 stop
11:20 am - 9:32 pmSTL-MCI
10h 12m2 stops
$1,358United Airlines
Find Deal
Fri, Nov 15 - Mon, Nov 18
6:00 am - 3:58 pmMCI-STL
9h 58m2 stops
11:20 am - 9:32 pmSTL-MCI
10h 12m2 stops
$1,413United Airlines
Find Deal
Fri, Nov 15 - Mon, Nov 18
4:05 pm - 5:10 pmMCI-STL
1h 05mnonstop
8:15 pm - 9:25 pmSTL-MCI
1h 10mnonstop
$138Southwest
Find Deal
Wed, Dec 25 - Tue, Dec 31
11:45 am - 12:45 pmMCI-STL
1h 00mnonstop
2:05 pm - 3:10 pmSTL-MCI
1h 05mnonstop
$153Southwest
Find Deal
Wed, Dec 25 - Wed, Jan 1
6:15 am - 7:30 amMCI-STL
1h 15mnonstop
10:30 am - 11:40 amSTL-MCI
1h 10mnonstop
$347Southwest
Find Deal
Sat, Dec 7 - Sat, Dec 7
4:05 pm - 5:10 pmMCI-STL
1h 05mnonstop
10:25 pm - 11:35 pmSTL-MCI
1h 10mnonstop
$352Southwest
Find Deal
Fri, Dec 6 - Sun, Dec 8
6:25 pm - 7:30 pmMCI-STL
1h 05mnonstop
10:05 am - 11:15 amSTL-MCI
1h 10mnonstop
$432Southwest
Find Deal
Fri, Dec 13 - Sun, Dec 15
11:45 am - 12:45 pmMCI-STL
1h 00mnonstop
10:45 pm - 11:55 pmSTL-MCI
1h 10mnonstop
$512Southwest
Find Deal
Wed, Nov 27 - Sat, Nov 30

Southwest flights from Kansas City to St. Louis

Our best Southwest deals on Kansas City to St. Louis flight tickets
Southwest
Dec 25
MCI11:45 amKansas City
1h 00m
STL12:45 pmLambert-St Louis
Jan 1
STL2:05 pmLambert-St Louis
1h 05m
MCI3:10 pmKansas City
Southwest
Dec 25
MCI11:45 amKansas City
1h 00m
STL12:45 pmLambert-St Louis
Jan 1
STL4:05 pmLambert-St Louis
6h 10m
1 stop
MCI10:15 pmKansas City
Southwest
Dec 14
MCI1:00 pmKansas City
4h 00m
1 stop
STL5:00 pmLambert-St Louis
Dec 18
STL11:15 amLambert-St Louis
1h 10m
MCI12:25 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
Dec 13
MCI5:23 amKansas City
5h 24m
1 stop
STL10:47 amLambert-St Louis
Dec 15
STL7:08 amLambert-St Louis
4h 50m
1 stop
MCI11:58 amKansas City
American Airlines
Dec 6
MCI12:48 pmKansas City
6h 41m
1 stop
STL7:29 pmLambert-St Louis
Dec 8
STL5:05 amLambert-St Louis
4h 48m
1 stop
MCI9:53 amKansas City
American Airlines
Dec 13
MCI5:20 amKansas City
5h 51m
1 stop
STL11:11 amLambert-St Louis
Dec 20
STL5:45 amLambert-St Louis
4h 05m
1 stop
MCI9:50 amKansas City

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 month to fly from Kansas City to St. Louis?

January. The cheapest time of year to fly to St. Louis from Kansas City is January. Most expensive is February

What is the cheapest day to depart Kansas City for St. Louis?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from Kansas City to St. Louis?

In the morning. Kansas City to St. Louis flights are approximately 31% more expensive in the afternoon than in the morning

What is the cheapest airline that flies to St. Louis from Kansas City?

American Airlines. American Airlines and Southwest are the most popular carriers operating from Kansas City to St. Louis

What is the cheapest Kansas City to St. Louis flight route?

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

How many flights depart from Kansas City to St. Louis on average per day?

As of November 2024, there are 2 flights per week flying from Kansas City to St. Louis. The most common time of day flights depart is 6:00AM, with 39% of flights taking off at noon.

How many flights depart from Kansas City to St. Louis on average per week?

The number of flights available between Kansas City and St. Louis is 18 per week as of November 2024. The most frequent departure day is Sunday, with 17% of weekly flights leaving on this day.

Can stopping save me money on Kansas City to St. Louis flights?

No. A direct flight is the cheapest option for a flight between Kansas City to St. Louis.

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

As of November 2024, prices for Kansas City to St. Louis flights are approximately 30% cheaper 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

$69

Fastest flight time

1h 00m

Direct flights

Wed, Thu, Fri, 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 $69. The best round-trip flight deal from Kansas City to St. Louis found on momondo in the last 72 hours is $153.
The fastest flight from Kansas City to St. Louis takes 1h 00m
Direct flights go from Kansas City to St. Louis on Wednesday, Thursday, Friday, 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 00m 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
5,045 reviews
Search Southwest flights
American AirlinesPriceFrom $276Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Southwest Flights From Kansas City to St. Louis

    Across 18 Southwest flights from Kansas City to St. Louis this week, the average price was $489, with the best Southwest deals starting from $176 round-trip. 5,045 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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