$66 Find Cheap Flights from St. Louis to Missouri - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Missouri departing on 8/21. 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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Cheap Flights from St. Louis to Missouri

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Kansas City
Kansas City1 stop$139
Springfield
Springfield2 stops$367
Kirksville
Kirksville2 stops$384
Kansas City
Kansas City1 stop$139
Springfield
Springfield2 stops$367
Kirksville
Kirksville2 stops$384

Book Cheap St. Louis to Missouri Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Missouri 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 St. Louis to Missouri

Fri, Aug 7 - Fri, Aug 14
Frontier Logo
4:57 pm - 5:10 pm
STL
-
MCI
24h 13m
1 stop
Frontier Logo
6:17 pm - 8:57 am
MCI
-
STL
14h 40m
1 stop
$139Frontier
Fri, Aug 21 - Mon, Aug 24
Frontier Logo
6:17 pm - 4:05 pm
STL
-
MCI
21h 48m
1 stop
Frontier Logo
11:26 am - 5:22 pm
MCI
-
STL
5h 56m
1 stop
$140Frontier
Fri, Jul 24 - Mon, Jul 27
Frontier Logo
4:57 pm - 5:10 pm
STL
-
MCI
24h 13m
1 stop
Frontier Logo
6:07 pm - 5:37 pm
MCI
-
STL
23h 30m
1 stop
$154Frontier
Tue, Aug 4 - Tue, Aug 11
American Airlines Logo
5:58 pm - 12:19 am
STL
-
MCI
6h 21m
1 stop
American Airlines Logo
7:39 pm - 12:14 am
MCI
-
STL
4h 35m
1 stop
$231American Airlines
Tue, Aug 4 - Tue, Aug 11
Southwest Logo
2:50 pm - 3:55 pm
STL
-
MCI
1h 05mnonstop
Southwest Logo
11:55 am - 12:55 pm
MCI
-
STL
1h 00mnonstop
$235Southwest
Sat, Aug 15 - Fri, Aug 21
Multiple Airlines Logo
4:57 pm - 7:14 pm
STL
-
SGF
26h 17m
2 stops
Multiple Airlines Logo
8:36 pm - 5:50 pm
SGF
-
STL
21h 14m
1 stop
$367Multiple Airlines
Tue, Aug 4 - Mon, Aug 10
Multiple Airlines Logo
6:34 pm - 4:10 pm
STL
-
IRK
21h 36m
2 stops
Multiple Airlines Logo
5:10 pm - 2:56 pm
IRK
-
STL
21h 46m
1 stop
$384Multiple Airlines
Sat, Aug 15 - Fri, Aug 21
American Airlines Logo
1:25 pm - 10:43 pm
STL
-
SGF
9h 18m
1 stop
American Airlines Logo
8:04 pm - 8:24 am
SGF
-
STL
12h 20m
1 stop
$433American Airlines
Fri, Aug 21 - Tue, Sep 8
Delta Logo
7:00 am - 2:38 pm
STL
-
SGF
7h 38m
1 stop
Delta Logo
6:08 am - 11:42 pm
SGF
-
STL
17h 34m
1 stop
$639Delta
Tue, Aug 25 - Tue, Sep 8
Delta Logo
6:05 am - 6:17 pm
STL
-
SGF
12h 12m
2 stops
Delta Logo
6:08 am - 8:06 pm
SGF
-
STL
13h 58m
2 stops
$693Delta
Booking Insights

KAYAK's insights & trends for St. Louis to Missouri flights

Get data-powered insights and trends into flights from St. Louis to Missouri to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Missouri?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Missouri departing in August.

What is the cheapest St. Louis to Missouri flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Missouri from St. Louis found in the last 5 days was to Kansas City, at $356 round-trip. The most popular route is from St. Louis (STL) to Kansas City (MCI), and the cheapest round-trip airline ticket found on this route in the last 5 days was $356.

Can I save money by flying with a layover from St. Louis to Missouri?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $246 on average.

What is the cheapest month to fly from St. Louis to Missouri?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Missouri, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Missouri is December, when tickets cost $0 (return) on average. On the other hand, the most expensive months are February and June, when the average cost of round-trip tickets is $513 and $401 respectively.

Find deals

Good to know

Low seasonNovember
Cheapest flight$66
Best time to beat the crowds with an average 55% drop in price.
Most popular time to fly with an average 38% increase in price.
Flight from St. Louis to Kansas City

FAQs - booking Missouri flights

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

    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 St. Louis to Missouri.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to 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 St. Louis to Missouri?

    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 from St. Louis to Missouri with an airline and back with another airline.

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

    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 from St. Louis to 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 St. Louis to Missouri

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Missouri. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Missouri? 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.
7.9
SouthwestOverall score based on 4250 reviews
8.0Comfort
7.0Food
8.1Boarding
7.5Entertainment
8.6Crew
Airline reviews

Snacks are always pretzels. Why can't you also offer peanuts ?

6.0 GoodAnonymous, Mar 2026
STL - HOU
Read more Southwest reviews

Snacks are always pretzels. Why can't you also offer peanuts ?

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Very good. Sad to learn Southwest is going start to charge for bags

Exceptional crew! Friendly and professional. Pleasant attitude and treated everyone with respect.

The flight was promptly on schedule and Southwest delivered everything they promised. No excuses for any shortfalls just 100% ownership of their responsibilities and business. The boarding and seating policy is a complete shambles. What started out as a great idea when Southwest first hit the market has been turned into a disaster due to the lack of integrity in many of the people who fly Southwest and take advantage of Southwest generosity at the expense of their fellow passengers.

Crew was excellent - Plane was fine. Media was good, could use more kid shows; Not a fan of the brownie brittle -- snack could be slightly better.

Left on time and arrived early. Brand new plane and no parts missing. Comfortable seats. The actual Captain spoke prior to the flight and reassured everyone about safety. Crew was so nice and fun. Perfect flight!

Everything went smoothly and the plane wasn’t full. It was delayed though. The delay was increased due to a crew change which was frustrating.

Love Southwest! Always a good trip with a happy crew who goes out of their way to be kind and fun.

friendly staff for the most part. they thought we were going to have bad turbulence so no drink service. there wasn't any turbulence. Iwish you had a choice of snacks

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

Information on your arrival and departure airports

St. Louis (STL)