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 6/15. 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

ven., mai 1 - lun., mai 4
Frontier Logo
2:15 pm - 7:21 pm
MCI
-
STL
5h 06m
1 stop
Frontier Logo
8:17 pm - 1:49 pm
STL
-
MCI
17h 32m
1 stop
$171Frontier
sam., mai 2 - lun., mai 4
Frontier Logo
2:51 pm - 7:21 pm
MCI
-
STL
28h 30m
1 stop
Frontier Logo
8:17 pm - 1:49 pm
STL
-
MCI
17h 32m
1 stop
$207Frontier
jeu., avr. 30 - lun., mai 4
Frontier Logo
2:15 pm - 7:21 pm
MCI
-
STL
5h 06m
1 stop
Frontier Logo
8:17 pm - 1:49 pm
STL
-
MCI
17h 32m
1 stop
$212Frontier
ven., juin 5 - dim., juin 7
Frontier Logo
6:24 pm - 8:55 am
MCI
-
STL
14h 31m
1 stop
Frontier Logo
8:08 pm - 5:29 pm
STL
-
MCI
21h 21m
2 stops
$221Frontier
mar., août 11 - mar., août 18
Frontier Logo
1:45 pm - 8:52 am
MCI
-
STL
19h 07m
2 stops
Frontier Logo
6:33 pm - 5:24 pm
STL
-
MCI
22h 51m
1 stop
$224Frontier
mer., mai 13 - mer., mai 20
Multiple Airlines Logo
2:30 pm - 2:48 pm
TBN
-
STL
24h 18m
1 stop
Multiple Airlines Logo
5:27 pm - 1:50 pm
STL
-
TBN
20h 23m
2 stops
$308Multiple Airlines
mer., mai 6 - mar., mai 12
American Airlines Logo
6:00 am - 2:03 pm
COU
-
STL
8h 03m
1 stop
American Airlines Logo
5:21 pm - 9:46 am
STL
-
COU
16h 25m
1 stop
$324American Airlines
lun., mai 11 - lun., mai 18
American Airlines Logo
4:28 pm - 4:41 pm
COU
-
STL
24h 13m
1 stop
American Airlines Logo
8:57 am - 3:58 pm
STL
-
COU
7h 01m
1 stop
$371American Airlines
lun., avr. 27 - ven., mai 1
Multiple Airlines Logo
2:30 pm - 11:19 pm
TBN
-
STL
32h 49m
2 stops
Multiple Airlines Logo
7:01 pm - 11:45 am
STL
-
TBN
16h 44m
1 stop
$371Multiple Airlines
mar., avr. 28 - sam., mai 2
United Airlines Logo
5:00 am - 9:52 pm
COU
-
STL
16h 52m
1 stop
United Airlines Logo
7:11 pm - 10:57 am
STL
-
COU
15h 46m
1 stop
$751United Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$65
Best time to beat the crowds but there is an average 1% 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 4328 reviews
7.5Entertainment
8.0Comfort
8.6Crew
8.1Boarding
7.0Food
Airline reviews

Great flight. I didn't get a drink because I was asleep whole on the flight.

10.0 ExcellentPaul, Apr 2026
PHX - MDW
Read more Southwest reviews

Great flight. I didn't get a drink because I was asleep whole on the flight.

Great flight from Seattle to Phoenix and to Chicago-Midway from Phoenix

The new boarding process was easy and straightforward. Very pleasant.

The flight was okay. The pilots did an amazing job and kept us updated on the flight. The flight attendants were okay. They found time to be chatty with each other rather than focus on the guests. One of the attendants was a little less warm when asking about my bag I had on my lap that I was using during latter part of the mid- flight. Mind you, it was not the departure descent. I’m respectful to each and every attendant, it was the tone in her voice reminding me to place my carryon bag on the floor. I hope to have a better experience next time.

The entire travel day was a disaster from beginning to end. Woke up at two in the morning to make it to San Juan airport in time for a 5:30 am flight to Milwaukee which connected in Baltimore. Massive delays lead to me missing original connection out of Baltimore. Sixteen hours of delays/rebooking/layover time later, arrived in Milwaukee to find that only one of two checked bags made it there (despite the fact that Southwest brought another 737 jet to San Juan to fly us out to our original Baltimore connection—-not squeezed into another booked flight). The flight from Baltimore to Milwaukee was barely half full, so there was no logical reason to ship my bags out of Baltimore on a different flight to Chicago to then ship to Milwaukee. Southwest decided that my bags should not have been on the same connecting flight I WAS ON to Milwaukee, and then proceeded to accidentally leave my larger bag with the important items in Chicago. Terrible logic and support all around. Extremely angered and disappointed with SW. What a clownish operation your company has become!

It was as expected and I was grateful for the wheel chair help and ease of use.

One of the best airlines for fast boarding, on time arrivals, and top notch service!

The new seat assignment thing is wierd. If you don’t pay for a seat they always assign you a middle seat regardless of how many people are on the flight. Idk… the new company that bought Southwest is trying to make it more profitable, but I’m just not seeing it. The flight attendants aren’t having as much fun anymore. It just feels like the airline is slowly dying. IMO. We shall see if Southwest is the next Toy’s R Us.

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

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