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$129+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SDF
Dec 14 — Dec 211
Sun 12/14
Sun 12/21
1 adult, Economy
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Find 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 November 14, 2025.

This United Airlines deal was found by Cheapflights users on 11/12. 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 12/96:00 amBUF - SDF
1 stop6h 56mUnited Airlines
Thu 12/119:55 amSDF - BUF
1 stop4h 27mUnited Airlines
Deal found 11/12$294
This American Airlines deal was found by Cheapflights users on 11/12. 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 12/2412:50 pmBUF - SDF
1 stop6h 08mAmerican Airlines
Sun 12/285:49 pmSDF - BUF
1 stop4h 55mAmerican Airlines
Deal found 11/12$330
This Southwest deal was found by Cheapflights users on 11/12. 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 12/97:40 amBUF - SDF
2 stops8h 55mSouthwest
Thu 12/116:45 amSDF - BUF
2 stops7h 35mSouthwest
Deal found 11/12$334
This American Airlines deal was found by Cheapflights users on 11/13. 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 12/266:29 pmBUF - SDF
1 stop5h 06mAmerican Airlines
Tue 12/305:49 pmSDF - BUF
1 stop4h 55mAmerican Airlines
Deal found 11/13$337
This Delta deal was found by Cheapflights users on 11/13. 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 12/265:52 pmBUF - SDF
1 stop5h 06mDelta
Tue 12/307:25 amSDF - BUF
1 stop3h 56mDelta
Deal found 11/13$346
This American Airlines deal was found by Cheapflights users on 11/13. 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 12/267:15 pmBUF - SDF
1 stop5h 01mAmerican Airlines
Mon 12/292:00 pmSDF - BUF
1 stop3h 59mAmerican Airlines
Deal found 11/13$357
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Thu 12/255:41 pmBUF - SDF
1 stop4h 49mUnited Airlines
Wed 12/312:00 pmSDF - BUF
1 stop6h 54mUnited Airlines
Deal found 11/13$363
This Delta deal was found by Cheapflights users on 11/13. 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 12/265:52 pmBUF - SDF
1 stop5h 06mDelta
Mon 12/296:06 pmSDF - BUF
1 stop5h 22mDelta
Deal found 11/13$366
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Thu 12/256:30 amBUF - SDF
1 stop6h 43mUnited Airlines
Tue 12/302:00 pmSDF - BUF
1 stop6h 54mUnited Airlines
Deal found 11/13$370
This Delta deal was found by Cheapflights users on 11/13. 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 12/265:52 pmBUF - SDF
1 stop5h 06mDelta
Wed 12/317:25 amSDF - BUF
1 stop3h 56mDelta
Deal found 11/13$375
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 12/252:07 pmBUF - SDF
2 stops9h 52mMultiple Airlines
Tue 12/302:55 pmSDF - BUF
1 stop4h 18mMultiple Airlines
Deal found 11/13$384

Cheap 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 November 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$294
(United Airlines)

One-way from

$129
(Delta)

Popular in

August

Cheapest in

June

Average price

$377
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. 16% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 14, 2025.
Use the filters below to find and compare flights from Buffalo to Louisville that are best for you.

Fly from

Buffalo

Fly to

Louisville

Route

Depart

Return

Price

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Tue 12/9

6:00 am-12:56 pm

1 stop6h 56m

Louisville Intl

Thu 12/11

9:55 am-2:22 pm

1 stop4h 27m

$294

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Tue 3/31

2:30 pm-9:03 pm

1 stop6h 33m

Louisville Intl

Wed 4/1

11:45 am-5:26 pm

1 stop5h 41m

$309

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Wed 12/24

12:50 pm-6:58 pm

1 stop6h 08m

Louisville Intl

Sun 12/28

5:49 pm-10:44 pm

1 stop4h 55m

$330

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 12/25

12:53 pm-4:50 pm

1 stop3h 57m

Louisville Intl

Mon 12/29

7:00 am-12:25 pm

1 stop5h 25m

$330

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Tue 12/9

7:40 am-4:35 pm

2 stops8h 55m

Louisville Intl

Thu 12/11

6:45 am-2:20 pm

2 stops7h 35m

$334

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sat 12/27

5:52 pm-10:58 pm

1 stop5h 06m

Louisville Intl

Tue 12/30

6:06 pm-11:28 pm

1 stop5h 22m

$346

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 12/26

5:52 pm-10:58 pm

1 stop5h 06m

Louisville Intl

Tue 12/30

7:25 am-11:21 am

1 stop3h 56m

$346

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 12/26

7:15 pm-12:16 am

1 stop5h 01m

Louisville Intl

Mon 12/29

2:00 pm-5:59 pm

1 stop3h 59m

$357

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 12/25

5:41 pm-10:30 pm

1 stop4h 49m

Louisville Intl

Wed 12/31

2:00 pm-8:54 pm

1 stop6h 54m

$363

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Wed 12/10

2:57 pm-10:01 pm

1 stop7h 04m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 16 results
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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Buffalo-Louisville flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $129). Flying from Buffalo to Louisville in December is currently the most expensive (average of $253). 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.

What is the cheapest time of day to fly from BUF to SDF?

Find hourly flight availability from Buffalo to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 14, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 26% on flights from Buffalo to Louisville by exploring options for tickets in the morning.

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 November 14, 2025.
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
8,007 reviews

Boarding

8.1

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

7.9

Comfort

7.9

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

7.9

Comfort

7.9

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
11,051 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

7.9

Comfort

7.9

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 33m. 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 43% 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 $129). Flying from Buffalo to Louisville in December is currently the most expensive (average of $253). 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 November 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$250Average$498FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$272Average$494FlexibilityNo cancel feeOn-time71%

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