$126+ Cheap flights from St. Louis to Louisville (STL - SDF)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SDF
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Louisville with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Louisville
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Best
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One-way
Cheapest flights from St. Louis to LouisvilleExplore the most affordable flight options available from St. Louis to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from St. Louis to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This American Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:26 am -
1 stop4h 17m
Tue 12/16:24 am -
1 stop5h 10m
Deal found 10/23![American Airlines logo]()
$251
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:25 pm -
1 stop5h 30m
Tue 12/18:50 am -
2 stops5h 50m
Deal found 10/23![Southwest logo]()
$256
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:10 pm -
1 stop6h 15m
Tue 11/172:05 pm -
1 stop4h 05m
Deal found 10/21![Southwest logo]()
$266
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/3110:30 am -
2 stops9h 05m
Mon 1/412:05 pm -
2 stops9h 55m
Deal found 10/22![Southwest logo]()
$267
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:10 pm -
1 stop6h 15m
Tue 11/245:10 am -
1 stop5h 25m
Deal found 10/23![Southwest logo]()
$301
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:45 am -
2 stops10h 15m
Mon 12/77:35 pm -
1 stop3h 25m
Deal found 10/23![Southwest logo]()
$339
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/223:15 pm -
1 stop6h 15m
Sun 11/295:10 am -
1 stop4h 45m
Deal found 10/24![United Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:05 am -
1 stop6h 38m
Tue 11/106:27 am -
1 stop7h 23m
Deal found 10/22![American Airlines logo]()
$410
Best flights from St. Louis to LouisvilleDiscover carefully curated flight deals from St. Louis to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from St. Louis to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/316:35 am -
1 stop5h 25m
Mon 1/47:55 pm -
1 stop3h 55m
Deal found 10/22![Southwest logo]()
$251
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/147:18 pm -
1 stop3h 51m
Wed 12/167:05 am -
1 stop5h 24m
Deal found 10/21![Delta logo]()
$251
This American Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:26 am -
1 stop4h 17m
Tue 12/16:24 am -
1 stop5h 10m
Deal found 10/23![American Airlines logo]()
$251
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3010:45 am -
1 stop6h 44m
Wed 2/310:20 am -
1 stop5h 08m
Deal found 10/20![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:10 pm -
1 stop6h 15m
Tue 11/172:05 pm -
1 stop4h 05m
Deal found 10/22![Southwest logo]()
$266
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/204:40 pm -
2 stops6h 45m
Tue 11/247:15 pm -
1 stop6h 00m
Deal found 10/23![Southwest logo]()
$353
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/223:15 pm -
1 stop6h 15m
Sun 11/295:10 am -
1 stop4h 45m
Deal found 10/24![United Airlines logo]()
$409
Last-minute flights from St. Louis to LouisvilleDiscover last-minute flight deals from St. Louis to Louisville. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Louisville. Data last updated October 25, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:05 am -
1 stop6h 38m
Tue 11/106:27 am -
1 stop7h 23m
Deal found 10/22![American Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:25 pm -
2 stops7h 50m
Tue 11/1012:10 pm -
1 stop4h 25m
Deal found 10/22![Southwest logo]()
$415
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:10 pm -
1 stop6h 15m
Tue 11/172:05 pm -
1 stop4h 05m
Deal found 10/21![Southwest logo]()
$266
This American Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:26 am -
1 stop4h 17m
Tue 12/16:24 am -
1 stop5h 10m
Deal found 10/23![American Airlines logo]()
$251
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:10 pm -
1 stop6h 15m
Tue 11/245:10 am -
1 stop5h 25m
Deal found 10/23![Southwest logo]()
$301
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/223:15 pm -
1 stop6h 15m
Sun 11/295:10 am -
1 stop4h 45m
Deal found 10/24![United Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:45 am -
2 stops10h 15m
Mon 12/77:35 pm -
1 stop3h 25m
Deal found 10/23![Southwest logo]()
$339
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:25 pm -
1 stop5h 30m
Tue 12/18:50 am -
2 stops5h 50m
Deal found 10/23![Southwest logo]()
$256
One-way flights from St. Louis to LouisvilleSearch for one-way flight options from St. Louis to Louisville. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from St. Louis to Louisville. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/232:31 pm -
1 stop3h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Delta logo]()
$126
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:40 pm -
2 stops6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Southwest logo]()
$131
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:30 pm -
1 stop3h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 pm -
3 stops37h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:59 pm -
3 stops42h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$307
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:59 am -
1 stop6h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$330
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:30 am -
1 stop6h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:30 am -
3 stops12h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$602
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:40 am -
2 stops8h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$676
Find flight deals from St. Louis to Louisville
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $251 (Delta) |
One-way from | $126 (Delta) |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from St. Louis to Louisville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisLouisville
STL Lambert-St Louis - SDF Louisville Intl
STLSDF
Lambert-St Louis
Thu 12/31
6:35 am-1:00 pm
1 stop5h 25m
Louisville Intl
Mon 1/4
7:55 pm-10:50 pm
1 stop3h 55m
$251
St. LouisLouisville
STL Lambert-St Louis - SDF Louisville Intl
STLSDF
Lambert-St Louis
Mon 12/14
7:18 pm-12:09 am
1 stop3h 51m
Louisville Intl
Wed 12/16
7:05 am-11:29 am
1 stop5h 24m
$251
St. LouisLouisville
STL Lambert-St Louis - SDF Louisville Intl
STLSDF
Lambert-St Louis
Thu 11/19
7:26 am-12:43 pm
1 stop4h 17m
Louisville Intl
Tue 12/1
6:24 am-10:34 am
1 stop5h 10m
$251
St. LouisLouisville
STL Lambert-St Louis - SDF Louisville Intl
STLSDF
Lambert-St Louis
Fri 11/13
5:10 pm-12:25 am
1 stop6h 15m
Louisville Intl
Tue 11/17
2:05 pm-5:10 pm
1 stop4h 05m
$266
St. LouisLouisville
STL Lambert-St Louis - SDF Louisville Intl
STLSDF
Lambert-St Louis
Sat 1/30
10:45 am-6:29 pm
1 stop6h 44m
Louisville Intl
Wed 2/3
10:20 am-2:28 pm
1 stop5h 08m
$341
St. LouisLouisville
STL Lambert-St Louis - SDF Louisville Intl
STLSDF
Lambert-St Louis
Fri 11/20
4:40 pm-12:25 am
2 stops6h 45m
Louisville Intl
Tue 11/24
7:15 pm-12:15 am
1 stop6h 00m
$353
St. LouisLouisville
STL Lambert-St Louis - SDF Louisville Intl
STLSDF
Lambert-St Louis
Mon 11/2
1:08 pm-8:52 pm
1 stop6h 44m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$368
Quickest round-trip
St. LouisLouisville
STL Lambert-St Louis - SDF Louisville Intl
STLSDF
Lambert-St Louis
Mon 11/2
4:40 pm-12:20 am
2 stops6h 40m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$373
St. LouisLouisville
STL Lambert-St Louis - SDF Louisville Intl
STLSDF
Lambert-St Louis
Sun 11/22
3:15 pm-10:30 pm
1 stop6h 15m
Louisville Intl
Sun 11/29
5:10 am-8:55 am
1 stop4h 45m
$409
St. LouisLouisville
STL Lambert-St Louis - SDF Louisville Intl
STLSDF
Lambert-St Louis
Wed 11/4
9:40 am-7:30 pm
2 stops8h 50m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$601
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Louisville
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Louisville in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Louisville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Louisville
Have a flexible travel schedule? Discover the best time to fly to Louisville from St. Louis with our price prediction graph.
STL-SDF
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsShepherdsville
Elizabethtown
Jeffersonville
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