SDF - STL

$88 Find Cheap Flights from Louisville 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 from Louisville to St. Louis departing on 1/14. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$221
Multiple Airlines
Fri 1/30Sun 2/1
SDF - STL • 1 stop
Cheapest one-way
$88
Typical prices: $256-$343
Multiple Airlines
Wed 1/14
SDF - STL • 1 stop
Top airlines
American Airlines
Cheapest • from $223 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Fri, Jan 30 - Sun, Feb 1
Multiple Airlines Logo
1:55 pm - 11:33 pmSDF-STL
10h 38m1 stop
Multiple Airlines Logo
4:45 pm - 1:00 pmSTL-SDF
19h 15m1 stop
$221Multiple Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 17
American Airlines Logo
6:30 am - 4:50 pmSDF-STL
11h 20m1 stop
American Airlines Logo
5:05 am - 10:56 pmSTL-SDF
16h 51m1 stop
$223American Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 3
American Airlines Logo
6:15 am - 9:35 amSDF-STL
4h 20m1 stop
American Airlines Logo
1:43 pm - 10:56 pmSTL-SDF
8h 13m1 stop
$240American Airlines
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Wed, Dec 10 - Wed, Dec 17
American Airlines Logo
10:20 am - 4:50 pmSDF-STL
7h 30m1 stop
American Airlines Logo
5:05 am - 3:35 pmSTL-SDF
9h 30m2 stops
$245American Airlines
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Thu, Dec 4 - Sun, Dec 7
Multiple Airlines Logo
11:55 am - 9:47 amSDF-STL
22h 52m2 stops
Multiple Airlines Logo
2:47 pm - 11:00 amSTL-SDF
19h 13m1 stop
$260Multiple Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 17
American Airlines Logo
6:15 am - 3:29 pmSDF-STL
10h 14m2 stops
American Airlines Logo
5:05 am - 3:35 pmSTL-SDF
9h 30m2 stops
$267American Airlines
Find Deal
Thu, Jan 1 - Sat, Jan 3
American Airlines Logo
6:27 am - 1:36 pmSDF-STL
8h 09m1 stop
American Airlines Logo
6:35 pm - 12:21 amSTL-SDF
4h 46m1 stop
$270American Airlines
Find Deal
Mon, Dec 8 - Tue, Jan 6
American Airlines Logo
6:15 am - 9:32 amSDF-STL
4h 17m1 stop
American Airlines Logo
3:20 pm - 11:19 pmSTL-SDF
6h 59m1 stop
$277American Airlines
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Mon, Apr 6 - Wed, Apr 8
American Airlines Logo
7:19 pm - 9:48 pmSDF-STL
3h 29m1 stop
American Airlines Logo
11:14 am - 7:02 pmSTL-SDF
6h 48m1 stop
$299American Airlines
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Fri, Jan 30 - Sun, Feb 1
Multiple Airlines Logo
1:55 pm - 11:33 pmSDF-STL
10h 38m1 stop
Multiple Airlines Logo
4:45 pm - 6:04 pmSTL-SDF
24h 19m2 stops
$324Multiple Airlines
Find Deal
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.

What’s the cheapest day of the week to fly from Louisville to St. Louis?

The average price of all round-trip flights from Louisville to St. Louis clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Louisville to St. Louis, look for departures on Saturdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from St. Louis, Thursday is the cheapest day to fly and Monday is the most expensive.

Find deals

Good to know

Low seasonAugust
Cheapest flight$88
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 36% 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 $88 for a one-way ticket and $221 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 8009 reviews
8.5Crew
7.3Food
7.9Comfort
8.1Boarding
7.9Entertainment
Airline reviews

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

10.0 ExcellentDuane, Nov 2025PBI - ATL
Read more Delta reviews

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

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)