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Cheap flights from Kansas to St. Louis from $74

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 to St. Louis departing on 7/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Kansas to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:07 pm - 5:37 pm
MCI
-
STL
23h 30m
1 stop
Frontier Logo
6:34 pm - 5:10 pm
STL
-
MCI
22h 36m
1 stop
$167Frontier
Wed, Jul 22 - Thu, Jul 30
Frontier Logo
1:45 pm - 7:23 pm
MCI
-
STL
5h 38m
1 stop
Frontier Logo
6:34 pm - 5:10 pm
STL
-
MCI
22h 36m
1 stop
$195Frontier
Tue, Jul 28 - Thu, Jul 30
United Airlines Logo
6:48 pm - 11:57 pm
ICT
-
STL
5h 09m
1 stop
United Airlines Logo
7:05 pm - 11:31 pm
STL
-
ICT
4h 26m
1 stop
$209United Airlines
Wed, Jul 22 - Tue, Jul 28
Southwest Logo
7:35 pm - 11:55 pm
ICT
-
STL
4h 20m
1 stop
Southwest Logo
2:20 pm - 11:25 pm
STL
-
ICT
9h 05m
2 stops
$214Southwest
Wed, Jul 22 - Tue, Jul 28
Frontier Logo
6:07 pm - 5:37 pm
MCI
-
STL
23h 30m
1 stop
Frontier Logo
8:08 pm - 1:00 pm
STL
-
MCI
16h 52m
1 stop
$229Frontier
Wed, Jul 29 - Wed, Aug 5
Frontier Logo
1:45 pm - 7:23 pm
MCI
-
STL
5h 38m
1 stop
Frontier Logo
6:34 pm - 5:10 pm
STL
-
MCI
22h 36m
1 stop
$230Frontier
Sat, Aug 1 - Sun, Aug 2
United Airlines Logo
9:00 am - 2:10 pm
ICT
-
STL
5h 10m
1 stop
United Airlines Logo
5:36 pm - 11:31 pm
STL
-
ICT
5h 55m
1 stop
$235United Airlines
Thu, Sep 24 - Mon, Sep 28
Southwest Logo
3:10 pm - 10:05 pm
ICT
-
STL
6h 55m
1 stop
Southwest Logo
5:15 am - 1:20 pm
STL
-
ICT
8h 05m
2 stops
$240Southwest
Thu, Sep 24 - Mon, Sep 28
American Airlines Logo
7:43 am - 12:15 pm
TUL
-
STL
4h 32m
1 stop
American Airlines Logo
12:46 pm - 7:37 pm
STL
-
TUL
6h 51m
1 stop
$255American Airlines
Tue, Sep 8 - Wed, Sep 9
American Airlines Logo
7:43 am - 12:15 pm
TUL
-
STL
4h 32m
1 stop
American Airlines Logo
5:42 am - 9:50 am
STL
-
TUL
4h 08m
1 stop
$256American Airlines
Tue, Sep 1 - Thu, Sep 3

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United Airlines flights from Kansas to St. Louis

Our best United Airlines deals on Kansas to St. Louis flight tickets
United Airlines
Jul 22
ICT6:48 pmWichita Eisenhower National
5h 09m
1 stop
STL11:57 pmLambert-St Louis
Jul 28
STL7:05 pmLambert-St Louis
4h 26m
1 stop
ICT11:31 pmWichita Eisenhower National
$209
United Airlines
Sep 24
ICT9:00 amWichita Eisenhower National
5h 10m
1 stop
STL2:10 pmLambert-St Louis
Sep 28
STL5:36 pmLambert-St Louis
5h 55m
1 stop
ICT11:31 pmWichita Eisenhower National
$235
United Airlines
Aug 5
MCI7:53 amKansas City
4h 18m
1 stop
STL12:11 pmLambert-St Louis
Aug 18
STL8:00 amLambert-St Louis
4h 20m
1 stop
MCI12:20 pmKansas City
$269

Southwest flights from Kansas to St. Louis

Our best Southwest deals on Kansas to St. Louis flight tickets
Southwest
Jul 22
ICT7:35 pmWichita Eisenhower National
4h 20m
1 stop
STL11:55 pmLambert-St Louis
Jul 28
STL2:20 pmLambert-St Louis
9h 05m
2 stops
ICT11:25 pmWichita Eisenhower National
$214
Southwest
Sep 24
ICT3:10 pmWichita Eisenhower National
6h 55m
1 stop
STL10:05 pmLambert-St Louis
Sep 28
STL5:15 amLambert-St Louis
8h 05m
2 stops
ICT1:20 pmWichita Eisenhower National
$240
Southwest
Aug 5
TUL12:15 pmTulsa
5h 40m
1 stop
STL5:55 pmLambert-St Louis
Aug 12
STL12:50 pmLambert-St Louis
8h 45m
2 stops
TUL9:35 pmTulsa
$260

momondo Fare Finder

 
Customize your flight search to find flights from Kansas to St. Louis 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 July 3, 2026.
Use the filters below to find and compare flights from Kansas to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 7/22

6:07 pm-5:37 pm

1 stop23h 30m

Lambert-St Louis

Thu 7/30

6:34 pm-5:10 pm

1 stop22h 36m

$167

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Tue 7/28

1:45 pm-7:23 pm

1 stop5h 38m

Lambert-St Louis

Thu 7/30

6:34 pm-5:10 pm

1 stop22h 36m

$195

WichitaSt. Louis

ICT - STL

ICTSTL

Wichita Eisenhower National

Wed 7/22

6:48 pm-11:57 pm

1 stop5h 09m

Lambert-St Louis

Tue 7/28

7:05 pm-11:31 pm

1 stop4h 26m

$209

WichitaSt. Louis

ICT - STL

ICTSTL

Wichita Eisenhower National

Wed 7/22

7:35 pm-11:55 pm

1 stop4h 20m

Lambert-St Louis

Tue 7/28

2:20 pm-11:25 pm

2 stops9h 05m

$214

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 7/29

6:07 pm-5:37 pm

1 stop23h 30m

Lambert-St Louis

Wed 8/5

8:08 pm-1:00 pm

1 stop16h 52m

$229

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Sat 8/1

1:45 pm-7:23 pm

1 stop5h 38m

Lambert-St Louis

Sun 8/2

6:34 pm-5:10 pm

1 stop22h 36m

$230

WichitaSt. Louis

ICT - STL

ICTSTL

Wichita Eisenhower National

Thu 9/24

9:00 am-2:10 pm

1 stop5h 10m

Lambert-St Louis

Mon 9/28

5:36 pm-11:31 pm

1 stop5h 55m

$235

WichitaSt. Louis

ICT - STL

ICTSTL

Wichita Eisenhower National

Thu 9/24

3:10 pm-10:05 pm

1 stop6h 55m

Lambert-St Louis

Mon 9/28

5:15 am-1:20 pm

2 stops8h 05m

$240

TulsaSt. Louis

TUL - STL

TULSTL

Tulsa

Tue 9/8

7:43 am-12:15 pm

1 stop4h 32m

Lambert-St Louis

Wed 9/9

12:46 pm-7:37 pm

1 stop6h 51m

$255
Quickest round-trip

TulsaSt. Louis

TUL - STL

TULSTL

Tulsa

Tue 9/1

7:43 am-12:15 pm

1 stop4h 32m

Lambert-St Louis

Thu 9/3

5:42 am-9:50 am

1 stop4h 08m

$256

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 St. Louis from

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

In general, October is the cheapest month to fly from Kansas to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $77. The month of August is another great option to travel to St. Louis, with average flight prices from Kansas averaging around $80.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $344. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $459. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Kansas in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $412 when looking at flights departing in the afternoon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $420 per ticket.

What is the cheapest Kansas to Lambert-St Louis flight route?

Fly from Wichita Eisenhower National to Lambert-St Louis for the best Kansas - Lambert-St Louis flight prices

What cabin class options are available on Kansas to St. Louis flights?

There is only 1 cabin class available to choose from on Kansas to 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 to St. Louis flights?

You could potentially save up to 51% on your flight if you consider stops on a Kansas to St. Louis flight.

Cheap Kansas to St. Louis flight deals and tips

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

Best Price Found

$658

Fastest flight time

1h 00m

Direct flights

Every day

Airports in St. Louis

1 airport
The best flight deal from Kansas to St. Louis found on momondo in the last 72 hours is $658
The fastest flight from Kansas to St. Louis takes 1h 00m
Direct flights go from Kansas to St. Louis every day.
There is 1 airport in St. Louis. From Kansas there are direct flights to Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Kansas to St. Louis

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

    Prices for flights from Kansas to Lambert-St Louis Airport were last updated today.

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

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

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

    The travel and health documents you'll need for your trip to Lambert-St Louis 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 Lambert-St Louis 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 Kansas to St. Louis?

Best airlines flying from Kansas to St. Louis

Compare and see reviews for airlines that fly from Kansas to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $97Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
United AirlinesPriceFrom $209Free CancellationRating
7.4
9,927 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Fenton
Farmington
Wentzville
Clayton
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

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

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

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

Yes. All flights to St. Louis from Kansas on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Kansas 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.

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

Price alerts on flights to St. Louis from Kansas are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your St. Louis trip

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