$158+ Cheap flights from Buffalo to Louisville (BUF - 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SDF
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo 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 Buffalo to Louisville
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Cheapest flights from Buffalo to LouisvilleExplore the most affordable flight options available from Buffalo to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
Explore the most affordable flight options available from Buffalo to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
This Delta deal was found by Cheapflights users on 9/18. 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.
Fri 10/166:15 am -
1 stop3h 44m
Mon 10/195:38 pm -
1 stop6h 21m
Deal found 9/18![Delta logo]()
$309
This Southwest deal was found by Cheapflights users on 9/19. 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 11/47:25 am -
1 stop5h 35m
Thu 11/54:40 pm -
1 stop4h 35m
Deal found 9/19![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/216:30 am -
2 stops8h 09m
Fri 10/235:15 am -
1 stop4h 14m
Deal found 9/20![United Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 9/18. 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 10/296:00 am -
1 stop5h 10m
Sun 11/17:55 am -
1 stop3h 40m
Deal found 9/18![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 9/18. 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 10/295:45 pm -
1 stop6h 30m
Sun 11/17:05 am -
2 stops7h 20m
Deal found 9/18![Southwest logo]()
$354
This Southwest deal was found by Cheapflights users on 9/21. 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 11/134:00 pm -
2 stops8h 25m
Mon 11/162:05 pm -
1 stop6h 50m
Deal found 9/21![Southwest logo]()
$361
This Southwest deal was found by Cheapflights users on 9/20. 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.
Thu 11/54:00 pm -
2 stops8h 25m
Sun 11/85:40 am -
1 stop6h 20m
Deal found 9/20![Southwest logo]()
$365
Best flights from Buffalo to LouisvilleDiscover carefully curated flight deals from Buffalo to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
Discover carefully curated flight deals from Buffalo to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/285:58 pm -
1 stop4h 32m
Sat 10/312:15 pm -
1 stop6h 36m
Deal found 9/17![United Airlines logo]()
$381
This Southwest deal was found by Cheapflights users on 9/18. 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 10/2912:35 pm -
2 stops8h 35m
Sun 11/17:05 am -
2 stops7h 20m
Deal found 9/18![Southwest logo]()
$382
This Delta deal was found by Cheapflights users on 9/18. 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.
Fri 10/22:10 pm -
1 stop6h 33m
Sun 10/47:00 am -
1 stop6h 25m
Deal found 9/18![Delta logo]()
$549
This Southwest deal was found by Cheapflights users on 9/21. 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 11/64:00 pm -
2 stops8h 25m
Mon 11/98:45 am -
2 stops6h 30m
Deal found 9/21![Southwest logo]()
$383
This deal was found by Cheapflights users on 9/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:00 am -
1 stop6h 23m
Sun 12/139:00 am -
1 stop4h 17m
Deal found 9/17![United Airlines logo]()
$472
This Southwest deal was found by Cheapflights users on 9/20. 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.
Sun 10/187:00 pm -
1 stop3h 45m
Sun 10/253:25 pm -
2 stops8h 50m
Deal found 9/20![Southwest logo]()
$492
This Southwest deal was found by Cheapflights users on 9/19. 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 10/45:50 am -
2 stops9h 00m
Thu 10/85:40 pm -
1 stop5h 30m
Deal found 9/19![Southwest logo]()
$554
This Southwest deal was found by Cheapflights users on 9/21. 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.
Wed 10/79:45 am -
2 stops7h 25m
Thu 10/83:35 pm -
1 stop5h 35m
Deal found 9/21![Southwest logo]()
$554
Last-minute flights from Buffalo to LouisvilleDiscover last-minute flight deals from Buffalo to Louisville. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Louisville. Data last updated September 22, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/18. 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.
Fri 10/166:15 am -
1 stop3h 44m
Mon 10/195:38 pm -
1 stop6h 21m
Deal found 9/18![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/216:30 am -
2 stops8h 09m
Fri 10/235:15 am -
1 stop4h 14m
Deal found 9/20![United Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 9/19. 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.
Fri 10/236:15 am -
1 stop3h 44m
Sun 10/255:38 pm -
1 stop6h 21m
Deal found 9/19![Delta logo]()
$372
This Southwest deal was found by Cheapflights users on 9/19. 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 10/2312:35 pm -
2 stops8h 35m
Mon 10/263:35 pm -
2 stops8h 35m
Deal found 9/19![Southwest logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/285:58 pm -
1 stop4h 32m
Sat 10/312:15 pm -
1 stop6h 36m
Deal found 9/17![United Airlines logo]()
$381
This Delta deal was found by Cheapflights users on 9/18. 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 10/296:00 am -
1 stop5h 10m
Sun 11/17:55 am -
1 stop3h 40m
Deal found 9/18![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 9/18. 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 10/295:45 pm -
1 stop6h 30m
Sun 11/17:05 am -
2 stops7h 20m
Deal found 9/18![Southwest logo]()
$354
One-way flights from Buffalo to LouisvilleSearch for one-way flight options from Buffalo to Louisville. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
Search for one-way flight options from Buffalo to Louisville. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This Delta deal was found by Cheapflights users on 9/21. 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.
Sat 10/176:15 am -
1 stop3h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Delta logo]()
$158
This Southwest deal was found by Cheapflights users on 9/21. 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.
Sat 10/177:15 am -
2 stops7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Southwest logo]()
$207
This American Airlines deal was found by Cheapflights users on 9/19. 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 10/106:00 am -
1 stop8h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![American Airlines logo]()
$244
This Southwest deal was found by Cheapflights users on 9/18. 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 11/24:00 pm -
2 stops8h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Southwest logo]()
$258
This Southwest deal was found by Cheapflights users on 9/19. 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 10/107:20 am -
2 stops7h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Southwest logo]()
$267
This Southwest deal was found by Cheapflights users on 9/21. 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.
Wed 10/74:25 pm -
1 stop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Southwest logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 9/20. 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.
Fri 10/21:40 pm -
3 stops30h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$302
This Southwest deal was found by Cheapflights users on 9/20. 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.
Fri 10/25:45 pm -
1 stop6h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Southwest logo]()
$351
This Southwest deal was found by Cheapflights users on 9/22. 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.
Sun 10/45:50 am -
2 stops9h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Southwest logo]()
$356
This American Airlines deal was found by Cheapflights users on 9/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:55 pm -
1 stop6h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![American Airlines logo]()
$361
Find flight deals from Buffalo to Louisville
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) 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 September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $269 (Southwest) |
One-way from | $147 (Delta) |
Popular in | June |
Cheapest in | April |
Average price | $584 |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo 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 September 22, 2026.
Use the filters below to find and compare flights from Buffalo to Louisville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Sat 10/17
6:15 am-9:59 am
1 stop3h 44m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Mon 11/2
5:20 am-11:10 am
1 stop5h 50m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Sat 10/17
7:15 am-2:55 pm
2 stops7h 40m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$207
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Sat 10/10
7:20 am-3:15 pm
2 stops7h 55m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$267
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Wed 10/7
4:25 pm-11:05 pm
1 stop6h 40m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$275
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Fri 10/2
1:40 pm-8:31 pm
3 stops30h 51m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$302
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Fri 10/2
5:45 pm-12:10 am
1 stop6h 25m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$351
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Sun 10/4
9:00 am-3:55 pm
1 stop6h 55m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$351
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Wed 10/28
5:58 pm-10:30 pm
1 stop4h 32m
Louisville Intl
Sat 10/31
2:15 pm-8:51 pm
1 stop6h 36m
$381
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Thu 10/29
12:35 pm-9:10 pm
2 stops8h 35m
Louisville Intl
Sun 11/1
7:05 am-2:25 pm
2 stops7h 20m
$382
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Buffalo 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 Buffalo to Louisville in September.
| 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 Buffalo-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Louisville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-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 Buffalo-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 Buffalo to Louisville
Have a flexible travel schedule? Discover the best time to fly to Louisville from Buffalo with our price prediction graph.
BUF-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.
Reviews of airlines servicing Louisville
Get insights into the airlines that provide service to Louisville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Louisville. Reviews last updated September 22, 2026.
Get a feel of what it's like to fly with Delta and American Airlines from Buffalo to Louisville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Comfort
7.8
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Comfort
7.8
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Related info for your journey
Find useful and relevant information for your journey from Buffalo 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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Other flights to Louisville
Explore flights to Louisville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 22, 2026.
Buffalo and Louisville flights
Browse other Buffalo and Louisville flight options. Last updated on September 22, 2026.
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Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on September 22, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Buffalo to Louisville
Discover the top 2 airlines that operate flights from Buffalo to Louisville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$294 | Average$380 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$300 | Average$531 | FlexibilityNo cancel fee | On-timeN/A |