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$166+ 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SDF
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
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 December 28, 2025.

This American Airlines deal was found by Cheapflights users on 12/26. 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 12/296:29 pmBUF - SDF
1 stop5h 01mAmerican Airlines
Sun 1/46:03 amSDF - BUF
1 stop6h 14mAmerican Airlines
Deal found 12/26$691
This American Airlines deal was found by Cheapflights users on 12/27. 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.
Sun 12/285:22 pmBUF - SDF
1 stop4h 11mAmerican Airlines
Mon 12/292:00 pmSDF - BUF
1 stop3h 59mAmerican Airlines
Deal found 12/27$741
This Southwest deal was found by Cheapflights users on 12/26. 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 12/3012:25 pmBUF - SDF
1 stop6h 00mSouthwest
Wed 12/316:45 amSDF - BUF
2 stops7h 35mSouthwest
Deal found 12/26$746
This Southwest deal was found by Cheapflights users on 12/26. 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 12/292:45 pmBUF - SDF
2 stops9h 20mSouthwest
Sun 1/45:30 amSDF - BUF
2 stops9h 15mSouthwest
Deal found 12/26$913
This Southwest deal was found by Cheapflights users on 12/27. 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.
Sun 12/282:45 pmBUF - SDF
2 stops9h 20mSouthwest
Mon 12/295:05 amSDF - BUF
1 stop6h 45mSouthwest
Deal found 12/27$997

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 December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$317
(United Airlines)

One-way from

$166
(American Airlines)

Popular in

August

Cheapest in

June

Average price

$498
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. 15% potential increase in price ($84 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 December 2025
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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 December 28, 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

Sat 1/17

1:59 pm-8:28 pm

1 stop6h 29m

Louisville Intl

Tue 1/20

8:29 am-1:24 pm

1 stop4h 55m

$317

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 2/26

3:28 pm-9:03 pm

1 stop5h 35m

Louisville Intl

Sun 3/1

10:46 am-4:59 pm

1 stop6h 13m

$344

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 2/26

3:53 pm-12:24 am

2 stops8h 31m

Louisville Intl

Sun 3/1

12:00 pm-5:18 pm

1 stop5h 18m

$349

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 2/26

6:07 am-1:23 pm

2 stops7h 16m

Louisville Intl

Sun 3/1

5:35 am-2:13 pm

2 stops8h 38m

$414

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Mon 1/19

7:30 am-12:32 pm

1 stop5h 02m

$166

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Mon 1/19

8:58 pm-2:41 pm

2 stops17h 43m

$170

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sat 1/10

6:00 am-1:05 pm

1 stop7h 05m

$250

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Mon 1/5

10:43 am-11:59 pm

2 stops13h 16m

$287

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 1/2

6:00 am-1:35 pm

1 stop7h 35m

$307

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Mon 1/5

7:15 pm-12:16 am

1 stop5h 01m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Showing 1-10 of 12 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 December.
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 November is currently the most expensive (average of $266). 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 December 28, 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 December 28, 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
8,019 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

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
8,019 reviews
Delta
7.9
Good
8,019 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

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
11,072 reviews
Delta
7.9
Good
8,019 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

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 29m. Airlines will cover a distance of 493 mi.

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

    Delta, at $153, 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 65% 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 November is currently the most expensive (average of $266). 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$250Average$407FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$272Average$550FlexibilityNo cancel feeOn-time71%

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