$129 Cheap Flights from Buffalo (BUF) to Louisville (SDF)

View $129 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Louisville Intl. Airport (SDF)

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Cheap Flights from Buffalo to Louisville (BUF-SDF)

Prices were available within the past 7 days and start at $129 for one-way flights and $260 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Feb 11 - Sun, Feb 15
BUF
Buffalo
SDF
Louisville
$260 Roundtrip, found 3 days ago
$260
Roundtrip
found 3 days ago
Select United flight, departing Wed, Feb 11 from Buffalo to Louisville, returning Sun, Feb 15, priced at $260 found 3 days ago
United
Wed, Feb 11 - Sun, Feb 15
BUF
Buffalo
SDF
Louisville
$262 Roundtrip, found 3 days ago
$262
Roundtrip
found 3 days ago
Select United flight, departing Wed, Feb 11 from Buffalo to Louisville, returning Sun, Feb 15, priced at $262 found 3 days ago
American Airlines
Wed, Dec 17 - Sun, Jan 18
BUF
Buffalo
SDF
Louisville
$265 Roundtrip, found 2 days ago
$265
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Dec 17 from Buffalo to Louisville, returning Sun, Jan 18, priced at $265 found 2 days ago
American Airlines
Wed, Dec 17 - Sun, Jan 18
BUF
Buffalo
SDF
Louisville
$269 Roundtrip, found 2 days ago
$269
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Dec 17 from Buffalo to Louisville, returning Sun, Jan 18, priced at $269 found 2 days ago
United
Wed, Dec 17 - Sun, Jan 18
BUF
Buffalo
SDF
Louisville
$270 Roundtrip, found 2 days ago
$270
Roundtrip
found 2 days ago
Select United flight, departing Wed, Dec 17 from Buffalo to Louisville, returning Sun, Jan 18, priced at $270 found 2 days ago
Delta
Mon, Nov 24 - Thu, Nov 27
BUF
Buffalo
SDF
Louisville
$273 Roundtrip, found 3 days ago
$273
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Nov 24 from Buffalo to Louisville, returning Thu, Nov 27, priced at $273 found 3 days ago
United
Wed, Dec 17 - Sun, Jan 18
BUF
Buffalo
SDF
Louisville
$274 Roundtrip, found 2 days ago
$274
Roundtrip
found 2 days ago
Select United flight, departing Wed, Dec 17 from Buffalo to Louisville, returning Sun, Jan 18, priced at $274 found 2 days ago
American Airlines
Wed, Feb 11 - Sun, Feb 15
BUF
Buffalo
SDF
Louisville
$278 Roundtrip, found 3 days ago
$278
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Feb 11 from Buffalo to Louisville, returning Sun, Feb 15, priced at $278 found 3 days ago
United
Wed, Feb 11 - Sun, Feb 15
BUF
Buffalo
SDF
Louisville
$279 Roundtrip, found 3 days ago
$279
Roundtrip
found 3 days ago
Select United flight, departing Wed, Feb 11 from Buffalo to Louisville, returning Sun, Feb 15, priced at $279 found 3 days ago
Southwest Airlines
Thu, Jan 15 - Sun, Jan 18
BUF
Buffalo
SDF
Louisville
$283 Roundtrip, found 4 days ago
$283
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Thu, Jan 15 from Buffalo to Louisville, returning Sun, Jan 18, priced at $283 found 4 days ago

Find the cheapest month to fly from Buffalo (BUF) to Louisville (SDF)

August is typically the cheapest month to fly

From $158 - $560 per traveler.

Alternative airports near Louisville

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Louisville Intl. SDF. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $499
SDF
Louisville Intl.
CheapestClosest
Average driving time to city center9 min
Flights from $499

Frequently asked questions

How much does a flight from Buffalo Niagara Intl. Airport (BUF) to Louisville Intl. Airport (SDF) cost?
Get a cheap one-way flight from $129 or cheap return flight from $260 from Buffalo Niagara Intl. Airport (BUF) to Louisville Intl. Airport (SDF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Buffalo Niagara Intl. Airport (BUF) to Louisville Intl. Airport (SDF)?
Traveling in February is a good way to save, as it's the cheapest month for flights between BUF and SDF. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Louisville Intl. Airport (SDF)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest BUF to SDF flight.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Louisville Intl. Airport (SDF)?
There aren't any daily direct flights available from Buffalo Niagara Intl. Airport (BUF) to Louisville Intl. Airport (SDF). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from BUF to SDF?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Louisville Intl. Airport (SDF)?
Select a flight from Buffalo Niagara Intl. Airport (BUF) to Louisville Intl. Airport (SDF) that leaves before 3 PM to reduce the risk of cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Buffalo Niagara Intl. Airport (BUF) to Louisville Intl. Airport (SDF) last-minute?
Last-minute fares from BUF to SDF are typically more expensive. For the best rates, start looking for flights as soon as possible. That being said, if your travel plans are flexible, you may score a cheap fare right before you leave.
Is it cheaper to book a BUF to SDF flight and hotel package?
Opting for a BUF to SDF flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our impressive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Louisville Intl. Airport (SDF)?
Typically, it's possible to reschedule or cancel your BUF to SDF flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Louisville Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$260
Distance
492 mi

Book with confidence

Buffalo to Louisville Flights

The cheapest times to fly from Buffalo to Louisville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Buffalo to Louisville are during the month of February. You can find some of the cheapest flights from Buffalo to Louisville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buffalo to Louisville

Sunday is one of the best days to book for cheap flights from Buffalo to Louisville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Buffalo to Louisville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Buffalo to Louisville in 2025. You can also book with separate airlines for your outbound and return journeys, from $129 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Buffalo to Louisville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Buffalo to Louisville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Buffalo to Louisville Flights

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*Available to One Key members.