What airlines fly to Louisville?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Louisville from Buffalo according to our data. American Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 4 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Buffalo to Louisville Intl?

American Airlines, Delta, and United Airlines are the most popular carriers operating from Buffalo to Louisville Intl

When did momondo last update prices for flights from Buffalo Airport to Louisville Intl Airport?

Prices for flights from Buffalo Airport to Louisville Intl Airport are updated daily.

How many operators does momondo search for flights from Buffalo Airport to Louisville Intl Airport?

There are 2 operators available for flights from Buffalo Airport to Louisville Intl Airport as of December 2025.

How old do you have to be to fly from Buffalo Airport to Louisville Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to Louisville Intl Airport.

What documentation or ID do you need to fly to Louisville Intl Airport?

The required travel and health documents for your Louisville Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Louisville Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$114 Cheap Flights from Buffalo to Louisville in 2025/26

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Find the cheapest flights from Buffalo to Louisville

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Cheap round-trip flights

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11:24 am - 7:31 pm

BUF

SDF

8h 07m1 stop

8:29 am - 1:24 pm

SDF

BUF

4h 55m1 stop

$317United Airlines

Sat, Jan 17 - Tue, Jan 20

8:30 am - 1:28 pm

BUF

SDF

4h 58m1 stop

5:35 am - 2:14 pm

SDF

BUF

8h 39m2 stops

$322United Airlines

Sat, Jan 17 - Tue, Jan 20

11:24 am - 8:28 pm

BUF

SDF

9h 04m2 stops

5:35 am - 2:14 pm

SDF

BUF

8h 39m2 stops

$327United Airlines

Sat, Jan 17 - Tue, Jan 20

5:45 am - 9:55 am

BUF

SDF

4h 10m1 stop

6:35 pm - 12:15 am

SDF

BUF

5h 40m1 stop

$396Southwest

Fri, Mar 13 - Sun, Mar 15

3:55 pm - 10:40 pm

BUF

SDF

6h 45m2 stops

6:25 pm - 12:45 am

SDF

BUF

6h 20m1 stop

$401Southwest

Fri, Mar 13 - Sun, Mar 15

3:55 pm - 10:40 pm

BUF

SDF

6h 45m2 stops

8:45 am - 5:25 pm

SDF

BUF

8h 40m2 stops

$457Southwest

Fri, Mar 13 - Sun, Mar 15

5:03 pm - 8:55 pm

BUF

SDF

3h 52m1 stop

7:51 pm - 11:13 pm

SDF

BUF

3h 22m1 stop

$475American Airlines

Fri, May 1 - Sun, May 3

6:00 am - 1:35 pm

BUF

SDF

7h 35m1 stop

6:00 am - 11:02 am

SDF

BUF

5h 02m1 stop

$508Delta

Sun, Jan 4 - Thu, May 28

6:30 am - 1:13 pm

BUF

SDF

6h 43m1 stop

6:00 am - 3:53 pm

SDF

BUF

9h 53m2 stops

$520United Airlines

Sun, Jan 4 - Thu, May 28

2:45 pm - 12:05 am

BUF

SDF

9h 20m2 stops

8:40 am - 4:40 pm

SDF

BUF

8h 00m2 stops

$546Southwest

Sun, Jan 4 - Thu, May 28

American Airlines flights from Buffalo to Louisville

Our best American Airlines deals on Buffalo to Louisville flight tickets

American Airlines

May 1

BUF5:03 pmBuffalo

3h 52m

1 stop

SDF8:55 pmLouisville Intl

May 3

SDF7:51 pmLouisville Intl

3h 22m

1 stop

BUF11:13 pmBuffalo

$475

Find similar

American Airlines

Dec 26

BUF6:29 pmBuffalo

5h 06m

1 stop

SDF11:35 pmLouisville Intl

Dec 31

SDF7:00 amLouisville Intl

4h 07m

1 stop

BUF11:07 amBuffalo

$531

Find similar

American Airlines

Jan 4

BUF6:29 pmBuffalo

5h 01m

1 stop

SDF11:30 pmLouisville Intl

Jan 5

SDF2:00 pmLouisville Intl

3h 59m

1 stop

BUF5:59 pmBuffalo

$555

Find similar

Delta flights from Buffalo to Louisville

Our best Delta deals on Buffalo to Louisville flight tickets

Delta

Dec 26

BUF6:54 pmBuffalo

5h 02m

1 stop

SDF11:56 pmLouisville Intl

Dec 31

SDF4:49 pmLouisville Intl

6h 48m

1 stop

BUF11:37 pmBuffalo

$501

Find similar

Delta

Jan 4

BUF6:00 amBuffalo

7h 35m

1 stop

SDF1:35 pmLouisville Intl

May 28

SDF6:00 amLouisville Intl

5h 02m

1 stop

BUF11:02 amBuffalo

$508

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sat 1/17

11:24 am-7:31 pm

1 stop8h 07m

Louisville Intl

Tue 1/20

8:29 am-1:24 pm

1 stop4h 55m

$317

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sat 1/17

8:30 am-1:28 pm

1 stop4h 58m

Louisville Intl

Tue 1/20

5:35 am-2:14 pm

2 stops8h 39m

$322

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sat 1/17

11:24 am-8:28 pm

2 stops9h 04m

Louisville Intl

Tue 1/20

5:35 am-2:14 pm

2 stops8h 39m

$327

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 3/13

5:45 am-9:55 am

1 stop4h 10m

Louisville Intl

Sun 3/15

6:35 pm-12:15 am

1 stop5h 40m

$396

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 3/13

3:55 pm-10:40 pm

2 stops6h 45m

Louisville Intl

Sun 3/15

6:25 pm-12:45 am

1 stop6h 20m

$401

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 3/13

3:55 pm-10:40 pm

2 stops6h 45m

Louisville Intl

Sun 3/15

8:45 am-5:25 pm

2 stops8h 40m

$457

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Fri 5/1

5:03 pm-8:55 pm

1 stop3h 52m

Louisville Intl

Sun 5/3

7:51 pm-11:13 pm

1 stop3h 22m

$475

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sun 1/4

6:00 am-1:35 pm

1 stop7h 35m

Louisville Intl

Thu 5/28

6:00 am-11:02 am

1 stop5h 02m

$508

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sun 1/4

6:30 am-1:13 pm

1 stop6h 43m

Louisville Intl

Thu 5/28

6:00 am-3:53 pm

2 stops9h 53m

$520

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sun 1/4

2:45 pm-12:05 am

2 stops9h 20m

Louisville Intl

Thu 5/28

8:40 am-4:40 pm

2 stops8h 00m

$546

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Buffalo to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Louisville?

On average, the least expensive day to fly to Louisville from Buffalo is on a Friday. momondo users have found tickets for Friday departures for as low as $337. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Buffalo to Louisville on a Monday will generally be more expensive and average around $489. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Louisville?

Our data shows that the cheapest Buffalo to Louisville flights are usually those with departure times in the morning. Our users have found flights to Louisville in the morning for as low as $371. In the evening is when there is more demand to fly to Louisville, so prices are often more expensive at around $508 per ticket.

When to book flights from Buffalo to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to Louisville according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Buffalo to Louisville (BUF to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Louisville

Fastest flight time	4h 10m
Direct flights	None

The fastest flight from Buffalo to Louisville takes 4h 10m

There are no direct flights from Buffalo to Louisville. There are no popular flight routes from Buffalo to Louisville.

Search flight deals

How far is Buffalo to Louisville Intl by plane?
The distance between Buffalo and Louisville Intl is about 482.0 mi. By plane, this route typically takes 4h 10m.
When did momondo last update prices for flights from Buffalo Airport to Louisville Intl Airport?
Prices for flights from Buffalo Airport to Louisville Intl Airport are updated daily.
How many operators does momondo search for flights from Buffalo Airport to Louisville Intl Airport?
There are 2 operators available for flights from Buffalo Airport to Louisville Intl Airport as of December 2025.
How old do you have to be to fly from Buffalo Airport to Louisville Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to Louisville Intl Airport.
What documentation or ID do you need to fly to Louisville Intl Airport?
The required travel and health documents for your Louisville Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Louisville Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Buffalo to Louisville?
momondo data reveals that the most frequently booked airline on the route from Buffalo to Louisville is Delta, representing 61% of all bookings. The subsequent popular airline is American Airlines at 39%.

Best airlines flying from Buffalo to Louisville

Compare and see reviews for airlines that fly from Buffalo to Louisville with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $250	Free Cancellation	Rating 7.9 8,014 reviews		Search Delta flights
American Airlines	PriceFrom $272	Free Cancellation	Rating 7.2 11,054 reviews		Search American Airlines flights

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Shepherdsville

New Albany

Corydon

Elizabeth

Charlestown

Brandenburg

Springfield

Georgetown

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to Louisville?

It is quick and easy to find Buffalo to Louisville flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Louisville that suits you.

Can I find flights from Buffalo to Louisville with flexible booking policies on momondo?

Flights from Buffalo to Louisville with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Buffalo to Louisville?

momondo helps you find the best flight between Buffalo and Louisville by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Buffalo to Louisville right now. Can momondo alert me if prices change?

Price alerts on flights to Louisville from Buffalo are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.