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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
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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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 September 16, 2025.

Round-trip from

$257
(Delta)

One-way from

$129
(Delta)

Popular in

August

Cheapest in

June

Average price

$569
From Buffalo to Louisville Intl
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One-way flight from Buffalo to Louisville Intl
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Highest demand for flights based on searches. 16% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 16, 2025.

This Delta deal was found by Cheapflights users on 9/15. 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 10/156:20 amBUF - SDF
1 stop3h 30mDelta
Wed 10/2210:30 amSDF - BUF
1 stop4h 46mDelta
Deal found 9/15$257
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/155:55 pmBUF - SDF
1 stop4h 35mUnited Airlines
Wed 10/227:00 amSDF - BUF
2 stops7h 12mUnited Airlines
Deal found 9/15$262
This Southwest deal was found by Cheapflights users on 9/15. 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 10/216:25 pmBUF - SDF
1 stop4h 20mSouthwest
Thu 10/232:50 pmSDF - BUF
1 stop6h 35mSouthwest
Deal found 9/15$280
This Southwest deal was found by Cheapflights users on 9/15. 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 10/1511:10 amBUF - SDF
2 stops6h 20mSouthwest
Wed 10/225:30 amSDF - BUF
2 stops8h 40mSouthwest
Deal found 9/15$348
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/47:11 pmBUF - SDF
1 stop27h 36mMultiple Airlines
Sun 10/128:52 pmSDF - BUF
1 stop23h 26mMultiple Airlines
Deal found 9/15$372
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/96:00 amBUF - SDF
1 stop5h 33mAmerican Airlines
Sun 10/126:30 pmSDF - BUF
1 stop4h 23mAmerican Airlines
Deal found 9/15$387
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Sun 9/287:41 pmBUF - SDF
1 stop13h 38mMultiple Airlines
Thu 10/22:55 pmSDF - BUF
2 stops20h 27mMultiple Airlines
Deal found 9/13$400
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/912:15 pmBUF - SDF
2 stops10h 32mMultiple Airlines
Sun 10/128:52 pmSDF - BUF
1 stop23h 26mMultiple Airlines
Deal found 9/15$405
This American Airlines deal was found by Cheapflights users on 9/15. 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 12/2812:34 pmBUF - SDF
1 stop4h 45mAmerican Airlines
Sat 1/1711:13 amSDF - BUF
1 stop5h 17mAmerican Airlines
Deal found 9/15$417

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 September 16, 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

Wed 10/15

6:20 am-9:50 am

1 stop3h 30m

Louisville Intl

Wed 10/22

10:30 am-3:16 pm

1 stop4h 46m

$257

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Tue 10/21

6:25 pm-10:45 pm

1 stop4h 20m

Louisville Intl

Thu 10/23

2:50 pm-9:25 pm

1 stop6h 35m

$280

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Wed 10/8

4:25 pm-11:24 pm

1 stop6h 59m

Louisville Intl

Fri 10/10

5:53 pm-11:35 pm

1 stop5h 42m

$288

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Wed 10/15

11:10 am-5:30 pm

2 stops6h 20m

Louisville Intl

Wed 10/22

5:30 am-2:10 pm

2 stops8h 40m

$348

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sat 10/4

7:11 pm-10:47 pm

1 stop27h 36m

Louisville Intl

Sun 10/12

8:52 pm-8:18 pm

1 stop23h 26m

$372

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 10/9

6:00 am-11:33 am

1 stop5h 33m

Louisville Intl

Sun 10/12

6:30 pm-10:53 pm

1 stop4h 23m

$387

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sun 9/28

7:41 pm-9:19 am

1 stop13h 38m

Louisville Intl

Thu 10/2

2:55 pm-11:22 am

2 stops20h 27m

$400

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 10/9

12:15 pm-10:47 pm

2 stops10h 32m

Louisville Intl

Sun 10/12

8:52 pm-8:18 pm

1 stop23h 26m

$405

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 10/2

7:41 pm-9:19 am

1 stop13h 38m

Louisville Intl

Sun 10/5

2:55 pm-6:14 pm

2 stops27h 19m

$425

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Wed 12/10

6:00 am-2:04 pm

1 stop8h 04m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 14 results
1
2

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, January is the cheapest month in which you can book a flight from Buffalo to Louisville (average of $299). Flying from Buffalo to Louisville in April is currently the most expensive (average of $369). 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 September 16, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 27% 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 September 16, 2025.
Get a feel of what it's like to fly with Southwest, 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.
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,957 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 3h 30m. 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.Alternate airlines to your destination round-trip include American Airlines and Southwest. Delta is priced at 41% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Buffalo to Louisville one-way?

    The cheapest airlines for a one-way flight from Buffalo to Louisville are Delta ($129), American Airlines ($129), and United Airlines ($164).

  • 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, January is the cheapest month in which you can book a flight from Buffalo to Louisville (average of $299). Flying from Buffalo to Louisville in April is currently the most expensive (average of $369). 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 3 airlines flying from Buffalo to Louisville

Discover the top 3 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$250Average$467FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$272Average$452FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$286Average$384FlexibilityNo cancel feeOn-time63%

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