$154+ Cheap flights from Buffalo to Louisville (BUF - 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SDF
Jun 26 — Jul 31
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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Best
Last-minute
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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 May 27, 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 May 27, 2026.
This Southwest deal was found by Cheapflights users on 5/26. 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 8/258:55 am
BUF
- SDF
1 stop3h 45m
Southwest
Thu 9/34:10 pm
SDF
- BUF
1 stop6h 05m
Southwest
Deal found 5/26![Southwest logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 5/26. 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 7/292:48 pm
BUF
- SDF
2 stops19h 44m
Multiple Airlines
Sun 8/29:19 pm
SDF
- BUF
1 stop21h 47m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$353
This American Airlines deal was found by Cheapflights users on 5/26. 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 7/295:20 am
BUF
- SDF
1 stop6h 27m
American Airlines
Sun 8/26:25 pm
SDF
- BUF
1 stop5h 28m
American Airlines
Deal found 5/26![American Airlines logo]()
$358
This Southwest deal was found by Cheapflights users on 5/26. 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 7/154:20 pm
BUF
- SDF
1 stop6h 15m
Southwest
Fri 7/177:25 am
SDF
- BUF
1 stop8h 35m
Southwest
Deal found 5/26![Southwest logo]()
$366
This Southwest deal was found by Cheapflights users on 5/27. 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 11/76:00 am
BUF
- SDF
1 stop6h 55m
Southwest
Sun 11/84:40 pm
SDF
- BUF
1 stop4h 30m
Southwest
Deal found 5/27![Southwest logo]()
$367
This Southwest deal was found by Cheapflights users on 5/27. 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 9/163:00 pm
BUF
- SDF
1 stop6h 30m
Southwest
Mon 9/218:30 am
SDF
- BUF
1 stop4h 15m
Southwest
Deal found 5/27![Southwest logo]()
$369
This United Airlines deal was found by Cheapflights users on 5/27. 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 11/711:40 am
BUF
- SDF
2 stops8h 34m
United Airlines
Sun 11/85:35 am
SDF
- BUF
1 stop4h 14m
United Airlines
Deal found 5/27![United Airlines logo]()
$372
This American Airlines deal was found by Cheapflights users on 5/27. 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 10/165:33 pm
BUF
- SDF
1 stop4h 12m
American Airlines
Mon 10/196:37 pm
SDF
- BUF
1 stop4h 49m
American Airlines
Deal found 5/27![American Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 5/25. 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 6/208:35 am
BUF
- SDF
1 stop5h 05m
Southwest
Mon 6/223:35 pm
SDF
- BUF
1 stop6h 00m
Southwest
Deal found 5/25![Southwest logo]()
$385
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 May 27, 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 May 27, 2026.
This Southwest deal was found by Cheapflights users on 5/26. 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 8/2512:00 pm
BUF
- SDF
2 stops8h 35m
Southwest
Thu 9/34:10 pm
SDF
- BUF
1 stop6h 05m
Southwest
Deal found 5/26![Southwest logo]()
$328
This American Airlines deal was found by Cheapflights users on 5/23. 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.
Fri 7/311:46 pm
BUF
- SDF
1 stop5h 45m
American Airlines
Sun 8/27:37 am
SDF
- BUF
1 stop6h 42m
American Airlines
Deal found 5/23![American Airlines logo]()
$402
This United Airlines deal was found by Cheapflights users on 5/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:04 pm
BUF
- SDF
1 stop5h 55m
United Airlines
Wed 7/17:15 am
SDF
- BUF
1 stop5h 58m
United Airlines
Deal found 5/23![United Airlines logo]()
$456
This Southwest deal was found by Cheapflights users on 5/27. 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 9/163:00 pm
BUF
- SDF
1 stop6h 30m
Southwest
Mon 9/218:30 am
SDF
- BUF
1 stop4h 15m
Southwest
Deal found 5/27![Southwest logo]()
$369
This Southwest deal was found by Cheapflights users on 5/27. 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 7/95:55 pm
BUF
- SDF
1 stop6h 35m
Southwest
Sun 7/125:25 am
SDF
- BUF
1 stop6h 20m
Southwest
Deal found 5/27![Southwest logo]()
$395
This Southwest deal was found by Cheapflights users on 5/26. 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 7/24:10 pm
BUF
- SDF
1 stop5h 45m
Southwest
Mon 7/63:35 pm
SDF
- BUF
1 stop6h 05m
Southwest
Deal found 5/26![Southwest logo]()
$395
This Southwest deal was found by Cheapflights users on 5/23. 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 7/314:10 pm
BUF
- SDF
2 stops8h 20m
Southwest
Sun 8/27:20 am
SDF
- BUF
2 stops7h 05m
Southwest
Deal found 5/23![Southwest logo]()
$415
This Southwest deal was found by Cheapflights users on 5/26. 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 7/154:20 pm
BUF
- SDF
1 stop6h 15m
Southwest
Fri 7/173:35 pm
SDF
- BUF
2 stops8h 40m
Southwest
Deal found 5/26![Southwest logo]()
$418
This Southwest deal was found by Cheapflights users on 5/25. 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 6/1812:40 pm
BUF
- SDF
1 stop10h 10m
Southwest
Sat 6/207:15 am
SDF
- BUF
2 stops9h 35m
Southwest
Deal found 5/25![Southwest logo]()
$451
This Southwest deal was found by Cheapflights users on 5/26. 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 7/312:50 pm
BUF
- SDF
2 stops7h 40m
Southwest
Sun 8/94:05 pm
SDF
- BUF
2 stops6h 45m
Southwest
Deal found 5/26![Southwest logo]()
$456
Last-minute flights from Buffalo to LouisvilleDiscover last-minute flight deals from Buffalo to Louisville. Data last updated May 27, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Louisville. Data last updated May 27, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/26. 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.
Mon 6/155:00 am
BUF
- SDF
1 stop4h 41m
American Airlines
Wed 6/177:43 am
SDF
- BUF
1 stop6h 38m
American Airlines
Deal found 5/26![American Airlines logo]()
$413
This Southwest deal was found by Cheapflights users on 5/27. 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 6/166:00 am
BUF
- SDF
1 stop6h 25m
Southwest
Sat 6/205:15 pm
SDF
- BUF
1 stop5h 55m
Southwest
Deal found 5/27![Southwest logo]()
$437
This Southwest deal was found by Cheapflights users on 5/25. 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 6/1812:40 pm
BUF
- SDF
1 stop10h 10m
Southwest
Sat 6/209:00 am
SDF
- BUF
1 stop5h 00m
Southwest
Deal found 5/25![Southwest logo]()
$391
This American Airlines deal was found by Cheapflights users on 5/27. 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 6/186:00 am
BUF
- SDF
1 stop4h 35m
American Airlines
Sun 6/216:25 pm
SDF
- BUF
1 stop5h 29m
American Airlines
Deal found 5/27![American Airlines logo]()
$415
This Southwest deal was found by Cheapflights users on 5/27. 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 6/187:35 am
BUF
- SDF
2 stops8h 50m
Southwest
Sun 6/215:25 am
SDF
- BUF
1 stop9h 00m
Southwest
Deal found 5/27![Southwest logo]()
$446
This Southwest deal was found by Cheapflights users on 5/25. 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 6/208:35 am
BUF
- SDF
1 stop5h 05m
Southwest
Mon 6/223:35 pm
SDF
- BUF
1 stop6h 00m
Southwest
Deal found 5/25![Southwest logo]()
$385
This United Airlines deal was found by Cheapflights users on 5/26. 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 6/306:04 pm
BUF
- SDF
1 stop5h 55m
United Airlines
Wed 7/17:15 am
SDF
- BUF
1 stop5h 58m
United Airlines
Deal found 5/26![United Airlines logo]()
$418
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 May 27, 2026.
Search for one-way flight options from Buffalo to Louisville. Find affordable one-way fares based on user searches. Data last updated May 27, 2026.
This American Airlines deal was found by Cheapflights users on 5/26. 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 8/256:00 am
BUF
- SDF
1 stop6h 07m
American Airlines
Deal found 5/26![American Airlines logo]()
$154
This Southwest deal was found by Cheapflights users on 5/26. 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 8/2512:35 pm
BUF
- SDF
2 stops8h 55m
Southwest
Deal found 5/26![Southwest logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Tue 8/2511:35 am
BUF
- SDF
3 stops26h 41m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$232
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 May 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $323 (Southwest) |
One-way from | $154 (American Airlines) |
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 2,558,603 searches. Data last updated May 27, 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
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Tue 8/25
12:00 pm-8:35 pm
2 stops8h 35m
Louisville Intl
Thu 9/3
4:10 pm-10:15 pm
1 stop6h 05m
$328
Quickest round-trip
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Wed 9/16
3:00 pm-9:30 pm
1 stop6h 30m
Louisville Intl
Mon 9/21
8:30 am-12:45 pm
1 stop4h 15m
$369
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Thu 7/9
5:55 pm-12:30 am
1 stop6h 35m
Louisville Intl
Sun 7/12
5:25 am-11:45 am
1 stop6h 20m
$395
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Thu 7/2
4:10 pm-9:55 pm
1 stop5h 45m
Louisville Intl
Mon 7/6
3:35 pm-9:40 pm
1 stop6h 05m
$395
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Fri 7/31
1:46 pm-7:31 pm
1 stop5h 45m
Louisville Intl
Sun 8/2
7:37 am-2:19 pm
1 stop6h 42m
$402
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Fri 7/31
4:10 pm-12:30 am
2 stops8h 20m
Louisville Intl
Sun 8/2
7:20 am-2:25 pm
2 stops7h 05m
$415
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Wed 7/15
4:20 pm-10:35 pm
1 stop6h 15m
Louisville Intl
Fri 7/17
3:35 pm-12:15 am
2 stops8h 40m
$418
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Thu 6/18
12:40 pm-10:50 pm
1 stop10h 10m
Louisville Intl
Sat 6/20
7:15 am-4:50 pm
2 stops9h 35m
$451
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Tue 6/30
6:04 pm-11:59 pm
1 stop5h 55m
Louisville Intl
Wed 7/1
7:15 am-1:13 pm
1 stop5h 58m
$456
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Fri 7/31
2:50 pm-10:30 pm
2 stops7h 40m
Louisville Intl
Sun 8/9
4:05 pm-10:50 pm
2 stops6h 45m
$456
Showing 1-10 of 12 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 May.
| 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 May 27, 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.
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Overall
7.9
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Overall
7.9
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Overall
7.9
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 locationsElizabethtown
Shepherdsville
Corydon
Jeffersonville
Bardstown
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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 May 27, 2026.
Buffalo and Louisville flights
Browse other Buffalo and Louisville flight options. Last updated on May 27, 2026.
Other flights from Buffalo
Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on May 27, 2026.
Popular flight searches
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 2,558,603 searches. Data last updated May 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$272 | Average$380 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$288 | Average$354 | FlexibilityNo cancel fee | On-timeN/A |