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Find cheap Southwest flights to St. Louis from $95

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Flights Deals

Cheap Southwest Flight Deals to St. Louis

 
Here are some of the best deals found on KAYAK recently from Southwest 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.

Recent round-trip Southwest flight deals to St. Louis

KAYAK's recommended round-trip Southwest deals departing in the coming months to St. Louis.
Discover the best prices for you by selecting your travel dates on KAYAK.
Southwest Logo
10:40 pm - 8:35 amSEA-STL
7h 55m1 stop
Southwest Logo
6:15 pm - 12:50 amSTL-SEA
8h 35m1 stop
$189Southwest
Find Deal
Thu, Jun 12 - Mon, Jun 16
Southwest Logo
10:25 am - 1:30 pmDEN-STL
2h 05mnonstop
Southwest Logo
5:55 am - 7:15 amSTL-DEN
2h 20mnonstop
$220Southwest
Find Deal
Wed, May 21 - Tue, May 27
Southwest Logo
7:45 am - 9:25 amLGA-STL
2h 40mnonstop
Southwest Logo
6:15 am - 9:35 amSTL-LGA
2h 20mnonstop
$221Southwest
Find Deal
Sat, Jun 14 - Wed, Jun 25
Southwest Logo
7:00 am - 10:00 amDEN-STL
2h 00mnonstop
Southwest Logo
6:20 am - 7:35 amSTL-DEN
2h 15mnonstop
$223Southwest
Find Deal
Tue, Aug 12 - Tue, Aug 26
Southwest Logo
8:35 am - 11:35 amDEN-STL
2h 00mnonstop
Southwest Logo
5:20 am - 8:50 amSTL-DEN
4h 30m1 stop
$226Southwest
Find Deal
Wed, May 21 - Tue, May 27
Southwest Logo
6:15 am - 9:20 amDEN-STL
2h 05mnonstop
Southwest Logo
5:20 am - 6:40 amSTL-DEN
2h 20mnonstop
$230Southwest
Find Deal
Tue, Jul 22 - Sat, Jul 26
Southwest Logo
6:05 am - 12:10 pmLGA-STL
7h 05m1 stop
Southwest Logo
6:00 am - 9:20 amSTL-LGA
2h 20mnonstop
$231Southwest
Find Deal
Tue, Jul 8 - Sat, Jul 12
Southwest Logo
6:55 am - 1:10 pmDEN-STL
5h 15m1 stop
Southwest Logo
3:00 pm - 4:15 pmSTL-DEN
2h 15mnonstop
$233Southwest
Find Deal
Tue, Aug 12 - Tue, Aug 26
Southwest Logo
7:00 am - 12:50 pmDEN-STL
4h 50m1 stop
Southwest Logo
5:20 am - 8:50 amSTL-DEN
4h 30m1 stop
$235Southwest
Find Deal
Wed, May 21 - Tue, May 27
Southwest Logo
5:45 pm - 7:35 pmLGA-STL
2h 50mnonstop
Southwest Logo
7:55 pm - 11:20 pmSTL-LGA
2h 25mnonstop
$237Southwest
Find Deal
Sat, May 24 - Sun, May 25
Useful Info

Good to know

Low seasonJanuary
High seasonMay
Cheapest flight$95
Average price round-trip$336
Good deal one-way$191
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Seattle to St. Louis
(avg. price over the last 2 weeks)
or less

When to book flights with Southwest to St. Louis

Average price per month
Flight prices as travel date approaches

FAQs for flying to St. Louis with Southwest

  • Which other airlines fly to St. Louis?

    Along with Southwest, you can also fly to St. Louis with Delta, American Airlines, United Airlines, Spirit Airlines, Frontier and Delta.

  • How much is a flight to St. Louis with Southwest?

    On average, Southwest flights to St. Louis cost $242 one-way.

  • Which airport do Southwest flights to St. Louis fly into?

    You’ll fly into St. Louis Lambert Airport when flying to St. Louis with Southwest.

Top tips for your flights to St. Louis with Southwest

  • The cheapest flight to St. Louis with Southwest found on KAYAK in the last 2 weeks departed from Kansas City and cost $63.

Southwest customer reviews

8.0
Very goodBased on 4,294 verified guest reviews
7.6Entertainment
8.0Comfort
8.2Boarding
8.6Crew
7.1Food
Pros +
Cons -
Show reviews that mention
Traveler rating:
Sort by:
K
8.0 Very good
Start drink service earlier. We were rushed.
J
8.0 Very good
It is southwest seat was ok. Not the most comfortable seat
H
6.0 Okay
They were more than 2 hours late.
H
10.0 Wonderful
Good
J
8.0 Very good
I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight
J
6.0 Okay
The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.
A
10.0 Wonderful
Plz don't take away free bags and free seating
D
6.0 Okay
The seats were a bit cramped and worn, but otherwise okay.
D
6.0 Okay
The seats were a bit cramped, but otherwise okay.
A
8.0 Very good
It departed late
Read more about Southwest

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

Other airlines flying to St. Louis

Flight deals from the most popular airlines with KAYAK users flying the route
Frontier flights to St. Louis
American Airlines flights to St. Louis
Delta flights to St. Louis
United Airlines flights to St. Louis
Alaska Airlines flights to St. Louis

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