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$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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SDF
Mar 30 — Apr 61
Mon 3/30
Mon 4/6
1 adult, Economy
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Cheap flight deals from Buffalo to Louisville

Cheapest flights from Buffalo to Louisville
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 February 28, 2026.

This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2412:07 pm
BUF
-
SDF
1 stop4h 23m
Delta
Tue 3/315:04 pm
SDF
-
BUF
1 stop6h 09m
Delta
Deal found 2/24$247
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/244:04 pm
BUF
-
SDF
2 stops6h 59m
American Airlines
Tue 3/317:50 am
SDF
-
BUF
1 stop5h 01m
American Airlines
Deal found 2/24$252
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/252:49 pm
BUF
-
SDF
1 stop4h 53m
United Airlines
Wed 4/110:00 am
SDF
-
BUF
2 stops8h 49m
United Airlines
Deal found 2/24$261
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:56 am
BUF
-
SDF
1 stop5h 34m
Delta
Thu 4/1610:46 am
SDF
-
BUF
1 stop4h 27m
Delta
Deal found 2/24$272
This United Airlines deal was found by Cheapflights users on 2/26. 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 4/267:00 am
BUF
-
SDF
1 stop6h 17m
United Airlines
Tue 4/289:55 am
SDF
-
BUF
1 stop4h 22m
United Airlines
Deal found 2/26$276
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:30 am
BUF
-
SDF
1 stop5h 28m
American Airlines
Sat 3/285:06 pm
SDF
-
BUF
1 stop4h 12m
American Airlines
Deal found 2/24$278
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1810:23 am
BUF
-
SDF
2 stops9h 19m
United Airlines
Fri 3/201:58 pm
SDF
-
BUF
1 stop6h 48m
United Airlines
Deal found 2/24$286
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:00 am
BUF
-
SDF
1 stop4h 46m
American Airlines
Thu 4/167:52 pm
SDF
-
BUF
1 stop3h 55m
American Airlines
Deal found 2/24$297
This Southwest deal was found by Cheapflights users on 2/26. 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.
Mon 4/136:00 am
BUF
-
SDF
1 stop3h 55m
Southwest
Tue 4/217:00 am
SDF
-
BUF
2 stops7h 35m
Southwest
Deal found 2/26$300

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 February 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$247
(Delta)

One-way from

$143
(Kiwi.com)

Popular in

September

Cheapest in

April

Average price

$342
Provider with most accurate pricing for Buffalo-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Louisville Intl flights.
Search Deals
From Buffalo to Louisville Intl
Search Deals
One-way flight from Buffalo to Louisville Intl
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($174 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 28, 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

Price

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Wed 3/18

1:52 pm-8:14 pm

1 stop6h 22m

Louisville Intl

Fri 3/20

1:58 pm-8:46 pm

1 stop6h 48m

$272

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sun 4/26

7:00 am-1:17 pm

1 stop6h 17m

Louisville Intl

Tue 4/28

9:55 am-2:17 pm

1 stop4h 22m

$276

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Wed 4/15

1:10 pm-8:35 pm

2 stops7h 25m

Louisville Intl

Sun 4/19

7:00 am-3:25 pm

2 stops8h 25m

$352

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sun 4/26

7:00 am-1:17 pm

1 stop6h 17m

Louisville Intl

Mon 4/27

5:00 am-2:17 pm

2 stops9h 17m

$362

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 4/16

5:45 am-3:00 pm

2 stops9h 15m

Louisville Intl

Thu 4/16

5:25 pm-11:20 pm

2 stops5h 55m

$391

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sun 4/26

12:25 pm-10:30 pm

2 stops10h 05m

Louisville Intl

Mon 4/27

2:40 pm-11:20 pm

2 stops8h 40m

$402

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sat 3/14

6:08 pm-11:57 pm

1 stop5h 49m

Louisville Intl

Thu 3/19

7:45 am-11:44 am

1 stop3h 59m

$407

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 4/10

3:01 pm-9:30 pm

1 stop6h 29m

Louisville Intl

Wed 4/15

9:00 am-2:21 pm

1 stop5h 21m

$422

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Wed 3/18

1:20 pm-10:15 pm

2 stops8h 55m

Louisville Intl

Fri 3/20

8:35 am-5:35 pm

2 stops9h 00m

$423

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 3/13

6:15 am-10:10 am

1 stop3h 55m

Louisville Intl

Mon 3/16

6:00 am-11:01 am

1 stop5h 01m

$499

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/27

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

Cheapflights Insights

Everything you need to know about your flight from Buffalo to Louisville

What is the cheapest month to book a flight from Buffalo to Louisville?

Currently, July is the cheapest month in which you can book a flight from Buffalo to Louisville (average of $138). Flying from Buffalo to Louisville in January is currently the most expensive (average of $275). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 February 28, 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.
Delta
7.9
Good
8,245 reviews

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
7.9
Good
8,245 reviews
Delta
7.9
Good
8,245 reviews

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
11,367 reviews
Delta
7.9
Good
8,245 reviews

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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.

  • How long is the flight from Buffalo to Louisville?

    Departing from Buffalo to Louisville will take you 6h 22m. Airlines will cover a distance of 493 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Buffalo to Louisville round-trip?

    Delta, at $250, was found to be the cheapest airline from Buffalo to Louisville. An alternate airline flying to your destination would be American Airlines. Delta is priced at 40% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Buffalo to Louisville that include hotel bookings?

    Yes. In addition to deals on Buffalo to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Louisville.

  • Can I find deals for business class flights from Buffalo to Louisville?

    Yes. Cheapflights offers flight deals from Buffalo to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buffalo to Louisville?

    Currently, July is the cheapest month in which you can book a flight from Buffalo to Louisville (average of $138). Flying from Buffalo to Louisville in January is currently the most expensive (average of $275). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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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 February 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$250Average$375FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$272Average$415FlexibilityNo cancel feeOn-time71%

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