SDF - STL

$238 Find Cheap Flights from Louisville to St. Louis

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to St. Louis departing on 1/26. 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

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$238
Multiple Airlines
Mon 1/26Mon 2/2
SDF - STL • 1 stop
Cheapest one-way
$267
Typical prices: $256-$343
Multiple Airlines
Thu 1/8
SDF - STL • 3 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Louisville to St. Louis (SDF-STL)

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

Mon, Jan 26 - Mon, Feb 2
Multiple Airlines Logo
1:55 pm - 11:33 pm
SDF
-
STL
10h 38m1 stop
Multiple Airlines Logo
5:42 pm - 2:41 pm
STL
-
SDF
19h 59m2 stops
$238Multiple Airlines
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
1:55 pm - 10:34 pm
SDF
-
STL
9h 39m1 stop
Multiple Airlines Logo
5:42 pm - 2:41 pm
STL
-
SDF
19h 59m2 stops
$261Multiple Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
2:05 pm - 5:43 pm
SDF
-
STL
4h 38m1 stop
United Airlines Logo
8:05 am - 1:24 pm
STL
-
SDF
4h 19m1 stop
$317United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
2:10 pm - 7:27 pm
SDF
-
STL
6h 17m1 stop
United Airlines Logo
3:11 pm - 10:30 pm
STL
-
SDF
6h 19m1 stop
$319United Airlines
Mon, Jan 26 - Mon, Feb 2
American Airlines Logo
7:13 pm - 2:50 pm
SDF
-
STL
20h 37m1 stop
American Airlines Logo
8:31 am - 6:39 pm
STL
-
SDF
9h 08m1 stop
$322American Airlines
Wed, Mar 18 - Wed, Mar 18
Southwest Logo
6:35 am - 12:40 pm
SDF
-
STL
7h 05m2 stops
Southwest Logo
2:25 pm - 11:30 pm
STL
-
SDF
8h 05m2 stops
$327Southwest
Sun, Jan 18 - Sun, Jan 25
American Airlines Logo
1:32 pm - 6:14 pm
SDF
-
STL
5h 42m1 stop
American Airlines Logo
6:44 pm - 11:19 pm
STL
-
SDF
3h 35m1 stop
$328American Airlines
Sun, Jan 18 - Sun, Jan 25
American Airlines Logo
6:00 am - 9:40 am
SDF
-
STL
4h 40m1 stop
American Airlines Logo
6:00 am - 2:48 pm
STL
-
SDF
7h 48m2 stops
$333American Airlines
Fri, Mar 27 - Mon, Mar 30
Southwest Logo
5:55 pm - 12:40 am
SDF
-
STL
7h 45m1 stop
Southwest Logo
4:20 pm - 10:50 pm
STL
-
SDF
5h 30m1 stop
$357Southwest
Fri, Mar 27 - Mon, Mar 30
Southwest Logo
4:30 pm - 11:25 pm
SDF
-
STL
7h 55m1 stop
Southwest Logo
4:55 pm - 12:40 am
STL
-
SDF
6h 45m2 stops
$362Southwest
Booking Insights

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

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

Which airlines fly non-stop between Louisville and St. Louis?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Louisville to St. Louis.

There is just one airline that flies from Louisville to St. Louis direct and that is Delta. The best round-trip deal found from Delta for the route is $204.

Find deals

Good to know

Low seasonAugust
Cheapest flight$238
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Louisville to St. Louis

When to book flights from Louisville to St. Louis

Are your dates flexible? Find out the best times to travel from Louisville to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Louisville to St. Louis

  • What is the cheapest flight from Louisville to St. Louis?

    In the last 3 days, the lowest price for a flight from Louisville to St. Louis was $189 for a one-way ticket and $238 for a round-trip.

  • Do I need a passport to fly between Louisville and St. Louis?

    No

  • Which aircraft models fly most regularly from Louisville to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Louisville to St. Louis?

    SkyTeam is the only airline alliance operating flights between Louisville and St. Louis.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Louisville 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 Louisville 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 Louisville with another airline. Booking your flights between Louisville and STL can sometimes prove cheaper using this method.

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

 
See real verified KAYAK customer reviews for airlines flying from Louisville to St. Louis. 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 Louisville 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
DeltaOverall score based on 8017 reviews
7.2Food
7.9Comfort
8.1Boarding
8.5Crew
7.9Entertainment
Airline reviews

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

6.0 GoodDorothy, Dec 2025
DTW - DCA
Read more Delta reviews

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Very good flight crew and very nice people staff were incredible especially the gate agent

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

The flight was delayed for about 2 hrs. Other than it, it was good.

Advertised fruit trays with cheese, but only snacks handed out!

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

Information on your arrival and departure airports

Louisville (SDF)
St. Louis (STL)