STL

$64 Find Cheap Flights from Missouri to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$191
Overall average: $602
Multiple Airlines
Tue 2/3Tue 2/10
MCI - STL • 1 stop
Cheapest non-stop
$241
Typical prices: $583-$602
Southwest
Wed 2/4Wed 2/11
MCI - STL • Non-stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Missouri to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Missouri to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Missouri to St. Louis

Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
5:04 pm - 11:33 pm
MCI
-
STL
30h 29m1 stop
Multiple Airlines Logo
3:49 pm - 4:09 pm
STL
-
MCI
24h 20m1 stop
$191Multiple Airlines
Fri, Feb 20 - Mon, Feb 23
Frontier Logo
11:00 am - 6:51 am
MCI
-
STL
19h 51m1 stop
Frontier Logo
1:54 pm - 7:48 pm
STL
-
MCI
5h 54m1 stop
$197Frontier
Thu, Jan 22 - Mon, Jan 26
Multiple Airlines Logo
5:04 pm - 10:23 am
MCI
-
STL
17h 19m1 stop
Multiple Airlines Logo
1:40 pm - 7:51 pm
STL
-
MCI
6h 11m1 stop
$204Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
7:00 am - 2:46 pm
MCI
-
STL
31h 46m2 stops
Multiple Airlines Logo
3:49 pm - 4:09 pm
STL
-
MCI
24h 20m1 stop
$218Multiple Airlines
Tue, Feb 17 - Wed, Feb 18
Southwest Logo
4:35 pm - 10:40 pm
MCI
-
STL
6h 05m1 stop
Southwest Logo
7:45 pm - 8:55 pm
STL
-
MCI
1h 10mnonstop
$244Southwest
Wed, Feb 4 - Wed, Feb 11
United Airlines Logo
8:00 am - 12:29 pm
MCI
-
STL
4h 29m1 stop
United Airlines Logo
8:05 am - 2:27 pm
STL
-
MCI
6h 22m1 stop
$247United Airlines
Tue, Feb 17 - Wed, Feb 18
Southwest Logo
10:10 am - 3:20 pm
MCI
-
STL
5h 10m1 stop
Southwest Logo
6:00 am - 12:20 pm
STL
-
MCI
6h 20m2 stops
$252Southwest
Thu, Mar 5 - Sun, Mar 8
American Airlines Logo
6:00 am - 11:48 pm
COU
-
STL
17h 48m1 stop
American Airlines Logo
6:00 am - 6:00 pm
STL
-
COU
36h 00m1 stop
$417American Airlines
Sat, Jan 24 - Tue, Jan 27
United Airlines Logo
8:45 am - 8:58 pm
COU
-
STL
12h 13m1 stop
United Airlines Logo
6:30 am - 9:37 pm
STL
-
COU
15h 07m1 stop
$567United Airlines
Thu, Jan 22 - Mon, Jan 26
American Airlines Logo
6:00 am - 10:20 am
COU
-
STL
28h 20m1 stop
American Airlines Logo
1:35 pm - 11:23 am
STL
-
COU
45h 48m1 stop
$602American Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$64
Best time to beat the crowds but there is an average 5% increase in price.
Flight from Kansas City to St. Louis

FAQs for booking flights from Missouri to St. Louis

  • How does KAYAK find such low prices on flights from Missouri to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Missouri is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Missouri to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Missouri with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Missouri to St. Louis

 
Need help choosing which airline to fly with from Missouri to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4250 reviews
8.6Crew
7.5Entertainment
8.0Comfort
8.1Boarding
7.0Food
Airline reviews

The flight crew was extremely rude and especially not helpful when our flight was delayed.

2.0 MediocreMatthew, Jan 2026
DAL - SAN
Read more Southwest reviews

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Pretty seamless, just a tad bit late in taking off and landing.

Flight was fine other than there was a gate change that I was not notified of. By chance I happened to check my phone and saw the change, otherwise, we would have missed our connecting flight.

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

St. Louis (STL)