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STL - SDF

$84 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 5/14. 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
0 bags
Tue 6/4
Tue 6/11

Search 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
In the last 7 days travelers have searched 42,830,901 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
6:05 pm - 11:14 pmSTL-SDF
28h 09m2 stops
7:43 am - 9:39 amSDF-STL
26h 56m2 stops
Fri, May 24 - Mon, May 27
4:05 pm - 11:14 pmSTL-SDF
30h 09m3 stops
7:45 am - 2:23 pmSDF-STL
31h 38m3 stops
$309Spirit Airlines
Find Deal
Mon, Jun 3 - Mon, Jun 10
6:05 pm - 11:14 pmSTL-SDF
28h 09m2 stops
10:29 am - 1:37 pmSDF-STL
28h 08m3 stops
Fri, May 24 - Mon, May 27
4:05 pm - 2:07 pmSTL-SDF
21h 02m2 stops
7:45 am - 2:23 pmSDF-STL
31h 38m3 stops
$363Spirit Airlines
Find Deal
Mon, Jun 3 - Mon, Jun 10
6:05 pm - 8:44 amSTL-SDF
37h 39m3 stops
10:29 am - 1:37 pmSDF-STL
28h 08m3 stops
Fri, May 24 - Mon, May 27
5:08 pm - 10:58 pmSTL-SDF
4h 50m1 stop
6:45 am - 1:10 pmSDF-STL
7h 25m1 stop
$391American Airlines
Find Deal
Fri, May 24 - Mon, May 27
5:08 pm - 10:58 pmSTL-SDF
4h 50m1 stop
3:19 pm - 10:02 pmSDF-STL
7h 43m2 stops
$414American Airlines
Find Deal
Mon, Jun 3 - Mon, Jun 10
6:00 am - 11:42 amSTL-SDF
4h 42m1 stop
8:08 pm - 11:40 pmSDF-STL
4h 32m1 stop
$432Delta
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Tue, May 21 - Wed, May 22
4:20 pm - 12:08 amSTL-SDF
6h 48m1 stop
7:20 am - 3:28 pmSDF-STL
9h 08m2 stops
$470American Airlines
Find Deal
Fri, May 24 - Mon, May 27
7:45 am - 2:58 pmSTL-SDF
6h 13m2 stops
3:55 pm - 12:03 amSDF-STL
9h 08m2 stops
$579American Airlines
Find Deal
Mon, Jun 3 - Mon, Jun 10

Flights from St. Louis to Louisville - Travel Insights & Trends

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 flights from St. Louis to Louisville clicked on KAYAK for each day over the last 12 months.
For St. Louis to Louisville, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Louisville back to St. Louis, the best deals are generally found on Sunday, with Friday being the most expensive.

Which airlines provide the cheapest flights from St. Louis to Louisville?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from St. Louis to Louisville found by KAYAK users in the last 72 hours was for $309 on Spirit Airlines, followed by American Airlines ($391). One-way flight deals have also been found from as low as $84 on Spirit Airlines and from $97 on American Airlines.

Good to know

Low season

March

High season

October

Cheapest flight

$84
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 34% increase in price.
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 $84 for a one-way ticket and $272 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.

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

    oneworld, and SkyTeam are the airline alliances operating flights between St. Louis and Louisville, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Louisville, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Louisville are Delta and American Airlines. With an average price for the route of $472 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $371 and an overall rating of 7.3.

  • 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.

See more FAQs

Top airlines 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
DeltaOverall score based on 10826 reviews
8.6Crew
8.2Boarding
7.9Comfort
8.0Entertainment
7.4Food
Airline reviews

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

10.0 ExcellentBranton, May 2024AVL - ATL
Read more about Delta reviews

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

WiFi connected but only let you go to the AA website, not even text messaging worked.

Book cheap flights from St. Louis to Louisville

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Louisville found on KAYAK in the last 72 hours.
5/14Tue
1 stopSpirit Airlines
7h 39mSTL-SDF
$84
9/18Wed
1 stopAmerican Airlines
10h 09mSTL-SDF
$97
8/8Thu
1 stopAmerican Airlines
5h 35mSTL-SDF
$146
9/18Wed
2 stopsSpirit Airlines
25h 37mSTL-SDF
$196
5/14Tue
3 stopsSpirit Airlines
25h 42mSTL-SDF
$202
8/8Thu
3 stops
22h 37mSTL-SDF
$237
8/8Thu
2 stopsAmerican Airlines
9h 37mSTL-SDF
$238
5/14Tue
2 stopsAmerican Airlines
9h 36mSTL-SDF
$261

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Last minute flights from St. Louis to Louisville

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Louisville that are departing in the next 10 days.
5/7Tue
multi-stopSpirit Airlines
8h 06mSTL-SDF
5/9Thu
multi-stopSpirit Airlines
11h 57mSDF-STL
$464
5/7Tue
multi-stop
8h 06mSTL-SDF
5/9Thu
multi-stop
25h 44mSDF-STL
$661
5/7Tue
multi-stopSpirit Airlines
8h 06mSTL-SDF
5/9Thu
multi-stopSpirit Airlines
19h 03mSDF-STL
$738

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St. Louis - Louisville Flights

Departure:

St. Louis (STL)United States

Destination:

Louisville (SDF)United States

Return flight deals:

Louisville - St. Louis

Cabin classes: