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

Delta is the most popular carrier operating from Buffalo to Louisville Intl

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 49% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 3 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.

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 is 1 operator available for flights from Buffalo Airport to Louisville Intl Airport as of February 2026.

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.

$152 Cheap Flights from Buffalo to Louisville in 2026

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Find the cheapest flights from Buffalo to Louisville

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:56 am - 2:30 pm

BUF

SDF

5h 34m

1 stop

11:12 am - 3:53 pm

SDF

BUF

4h 41m

1 stop

$289Delta

Mon, Apr 20 - Wed, Apr 22

5:44 pm - 9:14 pm

BUF

SDF

3h 30m

1 stop

6:44 pm - 10:57 pm

SDF

BUF

4h 13m

1 stop

$293Delta

Sat, Feb 21 - Mon, Feb 23

6:25 pm - 11:59 pm

BUF

SDF

5h 34m

1 stop

1:50 pm - 11:44 pm

SDF

BUF

9h 54m

2 stops

$298United Airlines

Sat, Feb 21 - Mon, Feb 23

6:15 am - 10:04 am

BUF

SDF

3h 49m

1 stop

12:12 pm - 5:31 pm

SDF

BUF

5h 19m

1 stop

$318Delta

Sun, Feb 22 - Tue, Mar 3

5:20 pm - 11:45 pm

BUF

SDF

6h 25m

1 stop

7:00 am - 2:35 pm

SDF

BUF

7h 35m

2 stops

$325Southwest

Mon, Apr 20 - Wed, Apr 22

12:40 pm - 9:45 pm

BUF

SDF

9h 05m

2 stops

7:00 am - 2:35 pm

SDF

BUF

7h 35m

2 stops

$330Southwest

Mon, Apr 20 - Wed, Apr 22

6:07 am - 1:23 pm

BUF

SDF

7h 16m

2 stops

1:50 pm - 11:44 pm

SDF

BUF

9h 54m

2 stops

$333United Airlines

Sat, Feb 21 - Mon, Feb 23

5:55 pm - 12:40 am

BUF

SDF

6h 45m

1 stop

5:55 pm - 12:40 am

SDF

BUF

6h 45m

1 stop

$355Southwest

Thu, Mar 12 - Thu, Mar 26

5:20 pm - 12:45 am

BUF

SDF

7h 25m

1 stop

7:35 am - 5:05 pm

SDF

BUF

9h 30m

2 stops

$356Southwest

Sun, Feb 22 - Tue, Mar 3

2:40 pm - 12:05 am

BUF

SDF

9h 25m

2 stops

7:35 am - 5:05 pm

SDF

BUF

9h 30m

2 stops

$361Southwest

Sun, Feb 22 - Tue, Mar 3

Southwest flights from Buffalo to Louisville

Our best Southwest deals on Buffalo to Louisville flight tickets

Southwest

Mar 12

BUF5:55 pmBuffalo

6h 45m

1 stop

SDF12:40 amLouisville Intl

Mar 26

SDF5:55 pmLouisville Intl

6h 45m

1 stop

BUF12:40 amBuffalo

$355

Southwest

Feb 22

BUF5:20 pmBuffalo

7h 25m

1 stop

SDF12:45 amLouisville Intl

Mar 3

SDF7:35 amLouisville Intl

9h 30m

2 stops

BUF5:05 pmBuffalo

$356

Southwest

Feb 22

BUF2:40 pmBuffalo

9h 25m

2 stops

SDF12:05 amLouisville Intl

Mar 3

SDF7:35 amLouisville Intl

9h 30m

2 stops

BUF5:05 pmBuffalo

$361

United Airlines flights from Buffalo to Louisville

Our best United Airlines deals on Buffalo to Louisville flight tickets

United Airlines

Feb 21

BUF6:25 pmBuffalo

5h 34m

1 stop

SDF11:59 pmLouisville Intl

Feb 23

SDF1:50 pmLouisville Intl

9h 54m

2 stops

BUF11:44 pmBuffalo

$298

United Airlines

Feb 21

BUF6:07 amBuffalo

7h 16m

2 stops

SDF1:23 pmLouisville Intl

Feb 23

SDF1:50 pmLouisville Intl

9h 54m

2 stops

BUF11:44 pmBuffalo

$333

United Airlines

Apr 10

BUF7:00 amBuffalo

26h 25m

1 stop

SDF9:25 amLouisville Intl

Apr 15

SDF10:00 amLouisville Intl

7h 10m

1 stop

BUF5:10 pmBuffalo

$408

Fly from

Fly to

Route

Depart

Return

Price

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Mon 4/20

8:56 am-2:30 pm

1 stop5h 34m

Louisville Intl

Wed 4/22

11:12 am-3:53 pm

1 stop4h 41m

$289

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sat 2/21

5:44 pm-9:14 pm

1 stop3h 30m

Louisville Intl

Mon 2/23

6:44 pm-10:57 pm

1 stop4h 13m

$293

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sat 2/21

6:25 pm-11:59 pm

1 stop5h 34m

Louisville Intl

Mon 2/23

1:50 pm-11:44 pm

2 stops9h 54m

$298

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sun 2/22

6:15 am-10:04 am

1 stop3h 49m

Louisville Intl

Tue 3/3

12:12 pm-5:31 pm

1 stop5h 19m

$318

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Mon 4/20

5:20 pm-11:45 pm

1 stop6h 25m

Louisville Intl

Wed 4/22

7:00 am-2:35 pm

2 stops7h 35m

$325

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Mon 4/20

12:40 pm-9:45 pm

2 stops9h 05m

Louisville Intl

Wed 4/22

7:00 am-2:35 pm

2 stops7h 35m

$330

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sat 2/21

6:07 am-1:23 pm

2 stops7h 16m

Louisville Intl

Mon 2/23

1:50 pm-11:44 pm

2 stops9h 54m

$333

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Thu 3/12

5:55 pm-12:40 am

1 stop6h 45m

Louisville Intl

Thu 3/26

5:55 pm-12:40 am

1 stop6h 45m

$355

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sun 2/22

5:20 pm-12:45 am

1 stop7h 25m

Louisville Intl

Tue 3/3

7:35 am-5:05 pm

2 stops9h 30m

$356

BuffaloLouisville

BUF - SDF

BUFSDF

Buffalo

Sun 2/22

2:40 pm-12:05 am

2 stops9h 25m

Louisville Intl

Tue 3/3

7:35 am-5:05 pm

2 stops9h 30m

$361

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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

How have Buffalo to Louisville flight prices changed over time?

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	3h 30m
Direct flights	None

The fastest flight from Buffalo to Louisville takes 3h 30m

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 3h 30m.
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 is 1 operator available for flights from Buffalo Airport to Louisville Intl Airport as of February 2026.
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 100% of all bookings.

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 $153	Free Cancellation	Rating 7.9 8,130 reviews		Search Delta flights

French Lick

Elizabethtown

West Baden Springs

Bardstown

Jeffersonville

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.