STL

$65 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 6/24. 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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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

Mon, Jun 1 - Sun, Jun 7
Frontier Logo
6:24 pm - 5:33 pm
MCI
-
STL
23h 09m
1 stop
Frontier Logo
6:33 pm - 5:29 pm
STL
-
MCI
22h 56m
1 stop
$126Frontier
Mon, Jun 1 - Thu, Jun 4
Frontier Logo
6:24 pm - 5:33 pm
MCI
-
STL
23h 09m
1 stop
Frontier Logo
6:33 pm - 5:29 pm
STL
-
MCI
22h 56m
1 stop
$162Frontier
Mon, Jun 1 - Thu, Jun 4
Frontier Logo
6:24 pm - 5:33 pm
MCI
-
STL
23h 09m
1 stop
Frontier Logo
6:33 pm - 5:29 pm
STL
-
MCI
22h 56m
1 stop
$169Frontier
Mon, Jun 1 - Sun, Jun 7
Frontier Logo
6:24 pm - 7:23 pm
MCI
-
STL
24h 59m
2 stops
Frontier Logo
6:33 pm - 5:29 pm
STL
-
MCI
22h 56m
1 stop
$171Frontier
Mon, Jun 1 - Mon, Jun 8
Frontier Logo
6:24 pm - 5:33 pm
MCI
-
STL
23h 09m
1 stop
Frontier Logo
8:08 pm - 1:00 pm
STL
-
MCI
16h 52m
1 stop
$183Frontier
Mon, Jun 1 - Mon, Jun 8
Frontier Logo
6:24 pm - 5:33 pm
MCI
-
STL
23h 09m
1 stop
Frontier Logo
9:06 pm - 1:00 pm
STL
-
MCI
15h 54m
2 stops
$197Frontier
Thu, May 28 - Thu, Jun 4
American Airlines Logo
10:30 am - 8:30 pm
COU
-
STL
10h 00m
1 stop
American Airlines Logo
6:00 am - 6:17 pm
STL
-
COU
12h 17m
1 stop
$418American Airlines
Thu, Jun 18 - Thu, Jun 25
Multiple Airlines Logo
12:10 pm - 6:36 pm
TBN
-
STL
6h 26m
2 stops
Multiple Airlines Logo
7:03 pm - 11:40 am
STL
-
TBN
16h 37m
1 stop
$449Multiple Airlines
Sun, May 31 - Sun, Jun 21
American Airlines Logo
6:32 pm - 11:54 pm
COU
-
STL
29h 22m
1 stop
American Airlines Logo
1:45 pm - 9:24 pm
STL
-
COU
7h 39m
1 stop
$491American Airlines
Sun, May 17 - Thu, May 21
American Airlines Logo
10:14 am - 2:03 pm
COU
-
STL
27h 49m
1 stop
American Airlines Logo
9:08 am - 10:00 am
STL
-
COU
48h 52m
1 stop
$741American Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$65
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 2% 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.
7.9
SouthwestOverall score based on 4305 reviews
8.1Boarding
7.0Food
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

2.0 MediocreAnonymous, May 2026
SEA - SMF
Read more Southwest reviews

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

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