STL - SDF

$198 Find Cheap Flights from St. Louis to Louisville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Louisville departing on 11/22. 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 Louisville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Louisville, 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 St. Louis to Louisville, 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
$280
Delta
Sat 12/6Mon 12/8
STL - SDF • 1 stop
Cheapest one-way
$198
Delta
Sat 11/22
STL - SDF • 1 stop
Top airlines
Delta
Cheapest • from $280 (round-trip)
Southwest
Best reviews • 8.0 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 Louisville!
Flight Deals
Booking Insights
Flight Deals

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

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

Sat, Dec 6 - Mon, Dec 8
Delta Logo
1:35 pm - 9:31 pmSTL-SDF
6h 56m1 stop
Delta Logo
6:16 pm - 11:42 pmSDF-STL
6h 26m1 stop
$280Delta
Find Deal
Sat, Dec 6 - Mon, Dec 8
Delta Logo
11:19 am - 9:13 pmSTL-SDF
8h 54m2 stops
Delta Logo
3:16 pm - 9:02 pmSDF-STL
6h 46m1 stop
$286Delta
Find Deal
Sat, Dec 6 - Mon, Dec 8
Southwest Logo
2:15 pm - 10:30 pmSTL-SDF
7h 15m2 stops
Southwest Logo
5:30 am - 12:35 pmSDF-STL
8h 05m2 stops
$320Southwest
Find Deal
Fri, Nov 28 - Mon, Dec 1
Delta Logo
6:40 am - 1:42 pmSTL-SDF
6h 02m1 stop
Delta Logo
2:22 pm - 5:09 pmSDF-STL
3h 47m1 stop
$357Delta
Find Deal
Wed, Nov 12 - Sun, Nov 16
Delta Logo
9:33 am - 5:16 pmSTL-SDF
6h 43m1 stop
Delta Logo
7:54 pm - 11:44 pmSDF-STL
4h 50m1 stop
$499Delta
Find Deal
Fri, Nov 28 - Mon, Dec 1
American Airlines Logo
2:17 pm - 12:22 amSTL-SDF
9h 05m2 stops
American Airlines Logo
7:31 pm - 12:05 amSDF-STL
5h 34m1 stop
$502American Airlines
Find Deal
Wed, Nov 12 - Sun, Nov 16
American Airlines Logo
3:38 pm - 11:59 pmSTL-SDF
7h 21m2 stops
American Airlines Logo
7:31 pm - 12:05 amSDF-STL
5h 34m1 stop
$504American Airlines
Find Deal
Fri, Nov 28 - Mon, Dec 1
Southwest Logo
7:50 am - 4:50 pmSTL-SDF
8h 00m2 stops
Southwest Logo
5:05 am - 5:30 pmSDF-STL
13h 25m2 stops
$545Southwest
Find Deal
Thu, Nov 13 - Mon, Nov 17
United Airlines Logo
11:34 am - 7:27 pmSTL-SDF
6h 53m1 stop
United Airlines Logo
6:07 pm - 10:45 pmSDF-STL
5h 38m1 stop
$808United Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
United Airlines Logo
11:34 am - 7:27 pmSTL-SDF
6h 53m1 stop
United Airlines Logo
9:00 am - 6:47 pmSDF-STL
10h 47m2 stops
$886United Airlines
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from St. Louis to Louisville 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 St. Louis to Louisville?

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

If your flying dates are flexible, you should consider flying to Louisville on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from St. Louis to Louisville. For your return ticket, we recommend flying on a Saturday and avoiding Thursdays for the best deals.

Good to know

Low seasonApril
Cheapest flight$198
Best time to beat the crowds with an average 51% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from St. Louis to Louisville

When to book flights from St. Louis to Louisville

Are your dates flexible? Find out the best times to travel from St. Louis to Louisville 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 St. Louis to Louisville

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

    In the last 3 days, the lowest price for a flight from St. Louis to Louisville was $198 for a one-way ticket and $280 for a round-trip.

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

    No

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

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

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

    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 St. Louis to Louisville.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from St. Louis 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 St. Louis to Louisville?

    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 Louisville with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and SDF 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 St. Louis to Louisville?

    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 Louisville from St. Louis 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 St. Louis to Louisville

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Louisville. 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 St. Louis to Louisville? 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 4243 reviews
8.0Comfort
7.5Entertainment
7.0Food
8.6Crew
8.1Boarding
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

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

Information on your arrival and departure airports

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