$143+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SDF
Aug 29 — Sep 51
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
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 Buffalo to Louisville
Cheapest
Best
Last-minute
One-way
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 July 30, 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 July 30, 2026.
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/265:21 pm
BUF
- SDF
1 stop5h 38m
American Airlines
Wed 9/27:31 am
SDF
- BUF
1 stop5h 07m
American Airlines
Deal found 7/29![American Airlines logo]()
$284
This Southwest deal was found by Cheapflights users on 7/29. 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 8/268:40 am
BUF
- SDF
1 stop6h 35m
Southwest
Wed 9/26:00 am
SDF
- BUF
1 stop5h 40m
Southwest
Deal found 7/29![Southwest logo]()
$285
This Delta deal was found by Cheapflights users on 7/29. 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 10/166:00 am
BUF
- SDF
1 stop5h 10m
Delta
Mon 10/195:38 pm
SDF
- BUF
1 stop6h 21m
Delta
Deal found 7/29![Delta logo]()
$326
This Southwest deal was found by Cheapflights users on 7/26. 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 8/2112:30 pm
BUF
- SDF
2 stops7h 55m
Southwest
Wed 8/266:00 am
SDF
- BUF
1 stop5h 40m
Southwest
Deal found 7/26![Southwest logo]()
$331
This American Airlines deal was found by Cheapflights users on 7/29. 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 9/305:30 am
BUF
- SDF
1 stop5h 10m
American Airlines
Sun 10/47:30 am
SDF
- BUF
1 stop6h 56m
American Airlines
Deal found 7/29![American Airlines logo]()
$340
This Southwest deal was found by Cheapflights users on 7/29. 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 9/3012:00 pm
BUF
- SDF
2 stops8h 40m
Southwest
Sun 10/44:20 pm
SDF
- BUF
1 stop3h 50m
Southwest
Deal found 7/29![Southwest logo]()
$345
This Southwest deal was found by Cheapflights users on 7/25. 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.
Mon 8/245:40 am
BUF
- SDF
2 stops7h 55m
Southwest
Fri 8/286:45 am
SDF
- BUF
2 stops6h 00m
Southwest
Deal found 7/25![Southwest logo]()
$350
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/266:55 am
BUF
- SDF
1 stop6h 16m
United Airlines
Sat 8/2910:23 am
SDF
- BUF
1 stop6h 34m
United Airlines
Deal found 7/28![United Airlines logo]()
$355
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 July 30, 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 July 30, 2026.
This Southwest deal was found by Cheapflights users on 7/28. 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 10/216:15 am
BUF
- SDF
2 stops7h 10m
Southwest
Sat 10/247:05 am
SDF
- BUF
1 stop5h 55m
Southwest
Deal found 7/28![Southwest logo]()
$290
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:01 am
BUF
- SDF
1 stop7h 26m
Delta
Wed 8/262:34 pm
SDF
- BUF
1 stop4h 34m
Delta
Deal found 7/26![Delta logo]()
$326
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/266:55 am
BUF
- SDF
1 stop6h 16m
United Airlines
Sat 8/2910:23 am
SDF
- BUF
1 stop6h 34m
United Airlines
Deal found 7/29![United Airlines logo]()
$355
This Delta deal was found by Cheapflights users on 7/30. 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 10/1610:00 am
BUF
- SDF
1 stop6h 56m
Delta
Mon 10/195:59 pm
SDF
- BUF
1 stop5h 00m
Delta
Deal found 7/30![Delta logo]()
$326
This Southwest deal was found by Cheapflights users on 7/29. 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 9/3012:00 pm
BUF
- SDF
2 stops8h 40m
Southwest
Sun 10/44:20 pm
SDF
- BUF
1 stop3h 50m
Southwest
Deal found 7/29![Southwest logo]()
$345
This Southwest deal was found by Cheapflights users on 7/25. 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.
Mon 8/245:40 am
BUF
- SDF
2 stops7h 55m
Southwest
Fri 8/286:45 am
SDF
- BUF
2 stops6h 00m
Southwest
Deal found 7/25![Southwest logo]()
$350
Last-minute flights from Buffalo to LouisvilleDiscover last-minute flight deals from Buffalo to Louisville. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Louisville. Data last updated July 30, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:01 am
BUF
- SDF
1 stop7h 26m
Delta
Wed 8/262:34 pm
SDF
- BUF
1 stop4h 34m
Delta
Deal found 7/26![Delta logo]()
$326
This Southwest deal was found by Cheapflights users on 7/26. 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 8/2112:30 pm
BUF
- SDF
2 stops7h 55m
Southwest
Wed 8/266:00 am
SDF
- BUF
1 stop5h 40m
Southwest
Deal found 7/26![Southwest logo]()
$331
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Sun 8/235:58 pm
BUF
- SDF
1 stop6h 01m
United Airlines
Sun 8/306:00 am
SDF
- BUF
1 stop3h 48m
United Airlines
Deal found 7/26![United Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 7/25. 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.
Mon 8/245:40 am
BUF
- SDF
2 stops7h 55m
Southwest
Fri 8/286:45 am
SDF
- BUF
2 stops6h 00m
Southwest
Deal found 7/25![Southwest logo]()
$350
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/265:21 pm
BUF
- SDF
1 stop5h 38m
American Airlines
Wed 9/27:31 am
SDF
- BUF
1 stop5h 07m
American Airlines
Deal found 7/29![American Airlines logo]()
$284
This Southwest deal was found by Cheapflights users on 7/29. 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 8/268:40 am
BUF
- SDF
1 stop6h 35m
Southwest
Wed 9/26:00 am
SDF
- BUF
1 stop5h 40m
Southwest
Deal found 7/29![Southwest logo]()
$285
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/266:55 am
BUF
- SDF
1 stop6h 16m
United Airlines
Sat 8/2910:23 am
SDF
- BUF
1 stop6h 34m
United Airlines
Deal found 7/28![United Airlines logo]()
$355
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 July 30, 2026.
Search for one-way flight options from Buffalo to Louisville. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
This Southwest deal was found by Cheapflights users on 7/29. 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 9/58:50 am
BUF
- SDF
1 stop3h 50m
Southwest
Deal found 7/29![Southwest logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/411:36 am
BUF
- SDF
2 stops32h 30m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/511:36 am
BUF
- SDF
3 stops30h 39m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$172
This Southwest deal was found by Cheapflights users on 7/28. 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 9/45:40 am
BUF
- SDF
1 stop4h 20m
Southwest
Deal found 7/28![Southwest logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/121:45 pm
BUF
- SDF
3 stops42h 17m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/142:48 pm
BUF
- SDF
2 stops43h 44m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$209
This American Airlines deal was found by Cheapflights users on 7/27. 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 8/145:21 pm
BUF
- SDF
1 stop5h 38m
American Airlines
Deal found 7/27![American Airlines logo]()
$265
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 9/410:30 am
BUF
- SDF
3 stops9h 43m
United Airlines
Deal found 7/28![United Airlines logo]()
$628
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 July 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $284 (American Airlines) |
One-way from | $143 (Southwest) |
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 July 30, 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
Wed 10/21
6:15 am-1:25 pm
2 stops7h 10m
Louisville Intl
Sat 10/24
7:05 am-1:00 pm
1 stop5h 55m
$290
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Fri 8/21
6:01 am-1:27 pm
1 stop7h 26m
Louisville Intl
Wed 8/26
2:34 pm-7:08 pm
1 stop4h 34m
$326
Quickest round-trip
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Fri 10/16
10:00 am-4:56 pm
1 stop6h 56m
Louisville Intl
Mon 10/19
5:59 pm-10:59 pm
1 stop5h 00m
$326
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Wed 9/30
12:00 pm-8:40 pm
2 stops8h 40m
Louisville Intl
Sun 10/4
4:20 pm-8:10 pm
1 stop3h 50m
$345
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Mon 8/24
5:40 am-1:35 pm
2 stops7h 55m
Louisville Intl
Fri 8/28
6:45 am-12:45 pm
2 stops6h 00m
$350
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Wed 8/26
6:55 am-1:11 pm
1 stop6h 16m
Louisville Intl
Sat 8/29
10:23 am-4:57 pm
1 stop6h 34m
$355
Cheapest one-way
Quickest one-way
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Sat 9/5
8:50 am-12:40 pm
1 stop3h 50m
$143
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Sat 9/12
8:50 am-4:15 pm
2 stops7h 25m
$148
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Fri 9/4
11:36 am-8:06 pm
3 stops32h 30m
$170
BuffaloLouisville
BUF - SDF
BUFSDF
Buffalo
Fri 9/4
5:40 am-10:00 am
1 stop4h 20m
$184
Showing 1-10 of 14 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 July.
| 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 July 30, 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.
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Entertainment
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 locationsCorydon
Shepherdsville
Elizabethtown
Jeffersonville
Bardstown
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Louisville flight routes
Other flight options
Other flights from Buffalo
Popular flights
Alternative routes for Buffalo to Louisville
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Louisville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Buffalo to Louisville by cabin class
Find flights from Buffalo to Louisville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 July 30, 2026.
Buffalo and Louisville flights
Browse other Buffalo and Louisville flight options. Last updated on July 30, 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 July 30, 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 July 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$294 | Average$380 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$300 | Average$528 | FlexibilityNo cancel fee | On-timeN/A |