STL

$80 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 10/8. 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

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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

Mon, Sep 22 - Fri, Sep 26
Southwest Logo
12:00 pm - 1:05 pmMCI-STL
1h 05mnonstop
Southwest Logo
2:50 pm - 3:55 pmSTL-MCI
1h 05mnonstop
$155Southwest
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Mon, Sep 22 - Fri, Sep 26
Southwest Logo
5:25 am - 6:30 amMCI-STL
1h 05mnonstop
Southwest Logo
5:25 am - 9:15 amSTL-MCI
3h 50m1 stop
$157Southwest
Find Deal
Tue, Sep 23 - Thu, Sep 25
Southwest Logo
6:15 am - 7:20 amMCI-STL
1h 05mnonstop
Southwest Logo
9:50 am - 10:55 amSTL-MCI
1h 05mnonstop
$160Southwest
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Tue, Sep 23 - Thu, Sep 25
Southwest Logo
4:25 pm - 9:55 pmMCI-STL
5h 30m1 stop
Southwest Logo
2:50 pm - 3:55 pmSTL-MCI
1h 05mnonstop
$165Southwest
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Tue, Aug 5 - Tue, Aug 12
American Airlines Logo
7:00 am - 12:43 pmMCI-STL
5h 43m1 stop
American Airlines Logo
5:52 pm - 10:48 pmSTL-MCI
4h 56m1 stop
$171American Airlines
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Fri, Aug 15 - Sat, Aug 16
American Airlines Logo
7:21 pm - 11:51 pmMCI-STL
4h 30m1 stop
American Airlines Logo
9:23 am - 2:01 pmSTL-MCI
4h 38m1 stop
$195American Airlines
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Tue, Jul 29 - Thu, Jul 31
Spirit Airlines Logo
4:23 pm - 10:29 amMCI-STL
18h 06m1 stop
Spirit Airlines Logo
5:26 pm - 5:09 pmSTL-MCI
23h 43m1 stop
$240Spirit Airlines
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Thu, Aug 14 - Sun, Aug 17
United Airlines Logo
6:05 am - 10:45 pmMCI-STL
16h 40m1 stop
United Airlines Logo
8:00 am - 11:14 pmSTL-MCI
15h 14m1 stop
$298United Airlines
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Sat, Aug 16 - Sun, Aug 17
Spirit Airlines Logo
6:00 am - 9:40 amMCI-STL
27h 40m2 stops
Spirit Airlines Logo
2:30 pm - 2:01 pmSTL-MCI
23h 31m2 stops
$300Spirit Airlines
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Fri, Jul 25 - Sun, Jul 27
Frontier Logo
8:01 pm - 9:11 amMCI-STL
13h 10m1 stop
Frontier Logo
2:36 pm - 10:21 amSTL-MCI
19h 45m1 stop
$328Frontier
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Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$80
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 7% lower on average.
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 4252 reviews
8.6Crew
8.1Boarding
7.0Food
8.0Comfort
7.6Entertainment
Airline reviews

It was one and half hour late... Not sure if any other experience matters.

4.0 OkaySudhir, Jul 2025LGA - MCI
Read more Southwest reviews

It was one and half hour late... Not sure if any other experience matters.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Sat on tarmac for 2 hours and then missed my connecting flight

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

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)

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