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$99+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SDF
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
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 August 16, 2025.

Round-trip from

$208
(Delta)

One-way from

$99
(Delta)

Popular in

August

Cheapest in

February

Average price

$617
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. 14% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 16, 2025.

This Delta deal was found by Cheapflights users on 8/13. 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 11/146:16 amBUF - SDF
1 stop7h 48mDelta
Mon 11/176:26 pmSDF - BUF
1 stop4h 37mDelta
Deal found 8/13$208
This Southwest deal was found by Cheapflights users on 8/14. 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.
Thu 12/116:15 amBUF - SDF
1 stop6h 10mSouthwest
Sun 12/145:30 amSDF - BUF
2 stops6h 30mSouthwest
Deal found 8/14$213
This Southwest deal was found by Cheapflights users on 8/14. 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 11/145:45 amBUF - SDF
2 stops6h 00mSouthwest
Mon 11/176:45 amSDF - BUF
1 stop9h 05mSouthwest
Deal found 8/14$219
This Delta deal was found by Cheapflights users on 8/15. 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.
Thu 11/1310:30 amBUF - SDF
1 stop6h 00mDelta
Sun 11/166:26 pmSDF - BUF
1 stop4h 37mDelta
Deal found 8/15$294
This Kiwi.com deal was found by Cheapflights users on 8/15. 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.
Mon 9/296:59 pmBUF - SDF
1 stop14h 20mMultiple Airlines
Mon 10/67:49 amSDF - BUF
1 stop10h 25mMultiple Airlines
Deal found 8/15$302
This Delta deal was found by Cheapflights users on 8/14. 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 9/197:08 pmBUF - SDF
1 stop4h 44mDelta
Sun 9/218:10 amSDF - BUF
1 stop7h 23mDelta
Deal found 8/14$317
This Southwest deal was found by Cheapflights users on 8/15. 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.
Thu 11/136:00 amBUF - SDF
1 stop5h 45mSouthwest
Sun 11/165:30 amSDF - BUF
2 stops6h 30mSouthwest
Deal found 8/15$318
This American Airlines deal was found by Cheapflights users on 8/15. 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.
Fri 9/196:49 pmBUF - SDF
1 stop4h 26mAmerican Airlines
Sun 9/217:00 amSDF - BUF
1 stop4h 06mAmerican Airlines
Deal found 8/15$337

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 August 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

Thu 12/11

6:50 pm-11:56 pm

1 stop5h 06m

Louisville Intl

Sun 12/14

7:00 am-11:14 am

1 stop4h 14m

$208

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 11/14

6:16 am-2:04 pm

1 stop7h 48m

Louisville Intl

Mon 11/17

6:26 pm-11:03 pm

1 stop4h 37m

$208

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 12/11

6:15 am-12:25 pm

1 stop6h 10m

Louisville Intl

Sun 12/14

5:30 am-12:00 pm

2 stops6h 30m

$213

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 11/14

5:45 am-11:45 am

2 stops6h 00m

Louisville Intl

Mon 11/17

6:45 am-3:50 pm

1 stop9h 05m

$219

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 11/13

10:30 am-4:30 pm

1 stop6h 00m

Louisville Intl

Sun 11/16

6:26 pm-11:03 pm

1 stop4h 37m

$294

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Mon 9/29

6:59 pm-9:19 am

1 stop14h 20m

Louisville Intl

Mon 10/6

7:49 am-6:14 pm

1 stop10h 25m

$302

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 9/19

7:08 pm-11:52 pm

1 stop4h 44m

Louisville Intl

Sun 9/21

8:10 am-3:33 pm

1 stop7h 23m

$317

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 9/4

6:50 pm-10:42 pm

1 stop3h 52m

$99

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 9/4

10:30 am-5:40 pm

2 stops7h 10m

$104

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 11/14

6:33 pm-11:59 pm

1 stop5h 26m

$110

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 13 results
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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 August 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 August 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
4,246 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,985 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

  • 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 39% 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 ($99), Southwest ($104), and American Airlines ($110).

  • 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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See prices for flight routes from nearby airports that may be better suited for you.
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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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$250Average$354FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$284Average$452FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$286Average$382FlexibilityNo cancel feeOn-time63%

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