$153+ Cheap flights from St. Louis to Louisville (STL - SDF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SDF
Jul 11 — Jul 181
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
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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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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 June 11, 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 June 11, 2026.
This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 6/306:30 am
STL
- SDF
1 stop6h 09m
Delta
Tue 7/75:28 pm
SDF
- STL
1 stop4h 09m
Delta
Deal found 6/11![Delta logo]()
$315
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 6/301:42 pm
STL
- SDF
2 stops7h 45m
American Airlines
Tue 7/77:10 pm
SDF
- STL
1 stop6h 06m
American Airlines
Deal found 6/10![American Airlines logo]()
$346
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 6/302:32 pm
STL
- SDF
1 stop6h 47m
American Airlines
Sun 7/58:19 pm
SDF
- STL
1 stop4h 38m
American Airlines
Deal found 6/10![American Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 6/8. 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 7/33:35 pm
STL
- SDF
2 stops7h 50m
Southwest
Sun 7/55:25 am
SDF
- STL
1 stop6h 40m
Southwest
Deal found 6/8![Southwest logo]()
$370
This Southwest deal was found by Cheapflights users on 6/7. 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.
Sat 9/128:30 am
STL
- SDF
2 stops7h 55m
Southwest
Tue 9/1512:50 pm
SDF
- STL
1 stop8h 05m
Southwest
Deal found 6/7![Southwest logo]()
$385
This Delta deal was found by Cheapflights users on 6/8. 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 7/1310:19 am
STL
- SDF
1 stop5h 28m
Delta
Sat 7/185:27 pm
SDF
- STL
1 stop4h 10m
Delta
Deal found 6/8![Delta logo]()
$395
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 June 11, 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 June 11, 2026.
This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 6/306:30 am
STL
- SDF
1 stop6h 09m
Delta
Tue 7/75:28 pm
SDF
- STL
1 stop4h 09m
Delta
Deal found 6/11![Delta logo]()
$315
This Southwest deal was found by Cheapflights users on 6/7. 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 7/35:20 pm
STL
- SDF
1 stop6h 05m
Southwest
Sun 7/55:30 pm
SDF
- STL
1 stop6h 45m
Southwest
Deal found 6/7![Southwest logo]()
$365
This Delta deal was found by Cheapflights users on 6/8. 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.
Wed 7/16:30 am
STL
- SDF
1 stop6h 09m
Delta
Tue 7/72:22 pm
SDF
- STL
1 stop4h 02m
Delta
Deal found 6/8![Delta logo]()
$335
This Southwest deal was found by Cheapflights users on 6/10. 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 7/315:40 am
STL
- SDF
1 stop3h 25m
Southwest
Sun 8/26:05 am
SDF
- STL
1 stop8h 25m
Southwest
Deal found 6/10![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 6/10. 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 7/1310:19 am
STL
- SDF
1 stop5h 28m
Delta
Sat 7/185:27 pm
SDF
- STL
1 stop4h 10m
Delta
Deal found 6/10![Delta logo]()
$395
This Southwest deal was found by Cheapflights users on 6/7. 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.
Sun 7/56:45 pm
STL
- SDF
1 stop4h 30m
Southwest
Sun 7/125:30 pm
SDF
- STL
1 stop6h 45m
Southwest
Deal found 6/7![Southwest logo]()
$405
This Southwest deal was found by Cheapflights users on 6/7. 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 7/104:35 pm
STL
- SDF
2 stops6h 55m
Southwest
Sat 7/1112:30 pm
SDF
- STL
2 stops6h 30m
Southwest
Deal found 6/7![Southwest logo]()
$405
This Southwest deal was found by Cheapflights users on 6/6. 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.
Sun 7/55:50 am
STL
- SDF
1 stop3h 25m
Southwest
Sat 7/115:15 pm
SDF
- STL
1 stop5h 50m
Southwest
Deal found 6/6![Southwest logo]()
$405
Last-minute flights from St. Louis to LouisvilleDiscover last-minute flight deals from St. Louis to Louisville. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Louisville. Data last updated June 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 6/306:30 am
STL
- SDF
1 stop6h 09m
Delta
Tue 7/75:28 pm
SDF
- STL
1 stop4h 09m
Delta
Deal found 6/11![Delta logo]()
$315
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 6/301:42 pm
STL
- SDF
2 stops7h 45m
American Airlines
Tue 7/77:10 pm
SDF
- STL
1 stop6h 06m
American Airlines
Deal found 6/10![American Airlines logo]()
$346
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 6/302:32 pm
STL
- SDF
1 stop6h 47m
American Airlines
Sun 7/58:19 pm
SDF
- STL
1 stop4h 38m
American Airlines
Deal found 6/10![American Airlines logo]()
$365
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 7/11:42 pm
STL
- SDF
2 stops7h 45m
American Airlines
Tue 7/75:04 am
SDF
- STL
2 stops8h 47m
American Airlines
Deal found 6/11![American Airlines logo]()
$401
This Southwest deal was found by Cheapflights users on 6/8. 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 7/33:35 pm
STL
- SDF
2 stops7h 50m
Southwest
Sun 7/55:25 am
SDF
- STL
1 stop6h 40m
Southwest
Deal found 6/8![Southwest logo]()
$370
This Delta deal was found by Cheapflights users on 6/8. 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 7/1310:19 am
STL
- SDF
1 stop5h 28m
Delta
Sat 7/185:27 pm
SDF
- STL
1 stop4h 10m
Delta
Deal found 6/8![Delta logo]()
$395
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 June 11, 2026.
Search for one-way flight options from St. Louis to Louisville. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Thu 7/96:34 pm
STL
- SDF
2 stops37h 02m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$153
This American Airlines deal was found by Cheapflights users on 6/8. 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.
Sat 7/42:35 pm
STL
- SDF
1 stop6h 29m
American Airlines
Deal found 6/8![American Airlines logo]()
$158
This Southwest deal was found by Cheapflights users on 6/8. 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.
Sat 7/47:15 am
STL
- SDF
2 stops10h 30m
Southwest
Deal found 6/8![Southwest logo]()
$163
This Delta deal was found by Cheapflights users on 6/7. 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.
Wed 7/2910:19 am
STL
- SDF
1 stop5h 28m
Delta
Deal found 6/7![Delta logo]()
$178
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Wed 7/296:55 am
STL
- SDF
2 stops7h 08m
American Airlines
Deal found 6/7![American Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Wed 7/294:57 pm
STL
- SDF
3 stops16h 35m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$192
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 7/96:30 am
STL
- SDF
1 stop6h 12m
Delta
Deal found 6/8![Delta logo]()
$198
This Southwest deal was found by Cheapflights users on 6/8. 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 7/104:35 pm
STL
- SDF
2 stops6h 55m
Southwest
Deal found 6/8![Southwest logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sat 7/45:06 pm
STL
- SDF
3 stops38h 40m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$258
This American Airlines deal was found by Cheapflights users on 6/6. 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.
Wed 6/2412:45 pm
STL
- SDF
1 stop5h 50m
American Airlines
Deal found 6/6![American Airlines logo]()
$260
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 June 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $315 (Delta) |
One-way from | $153 (Kiwi.com) |
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 2,558,603 searches. Data last updated June 11, 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 - SDF
STLSDF
Lambert-St Louis
Tue 6/30
6:30 am-1:39 pm
1 stop6h 09m
Louisville Intl
Tue 7/7
5:28 pm-8:37 pm
1 stop4h 09m
$315
St. LouisLouisville
STL - SDF
STLSDF
Lambert-St Louis
Wed 7/1
6:30 am-1:39 pm
1 stop6h 09m
Louisville Intl
Tue 7/7
2:22 pm-5:24 pm
1 stop4h 02m
$335
St. LouisLouisville
STL - SDF
STLSDF
Lambert-St Louis
Fri 7/3
5:20 pm-12:25 am
1 stop6h 05m
Louisville Intl
Sun 7/5
5:30 pm-11:15 pm
1 stop6h 45m
$365
St. LouisLouisville
STL - SDF
STLSDF
Lambert-St Louis
Fri 7/31
5:40 am-10:05 am
1 stop3h 25m
Louisville Intl
Sun 8/2
6:05 am-1:30 pm
1 stop8h 25m
$395
St. LouisLouisville
STL - SDF
STLSDF
Lambert-St Louis
Mon 7/13
10:19 am-4:47 pm
1 stop5h 28m
Louisville Intl
Sat 7/18
5:27 pm-8:37 pm
1 stop4h 10m
$395
St. LouisLouisville
STL - SDF
STLSDF
Lambert-St Louis
Sun 7/5
6:45 pm-12:15 am
1 stop4h 30m
Louisville Intl
Sun 7/12
5:30 pm-11:15 pm
1 stop6h 45m
$405
St. LouisLouisville
STL - SDF
STLSDF
Lambert-St Louis
Fri 7/10
4:35 pm-12:30 am
2 stops6h 55m
Louisville Intl
Sat 7/11
12:30 pm-6:00 pm
2 stops6h 30m
$405
Quickest round-trip
St. LouisLouisville
STL - SDF
STLSDF
Lambert-St Louis
Sun 7/5
5:50 am-10:15 am
1 stop3h 25m
Louisville Intl
Sat 7/11
5:15 pm-10:05 pm
1 stop5h 50m
$405
Cheapest one-way
St. LouisLouisville
STL - SDF
STLSDF
Lambert-St Louis
Fri 7/10
4:57 pm-8:36 am
2 stops14h 39m
$153
St. LouisLouisville
STL - SDF
STLSDF
Lambert-St Louis
Sat 7/4
2:35 pm-10:04 pm
1 stop6h 29m
$158
Showing 1-10 of 18 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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 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 locationsCorydon
Shepherdsville
Elizabethtown
Jeffersonville
Bardstown
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