BUF - SDF

$156 Find Cheap Flights from Buffalo to Louisville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Louisville departing on 5/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Louisville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Louisville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Louisville, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$265
Multiple Airlines
Tue 5/19Sat 5/23
BUF - SDF • 2 stops
Cheapest one-way
$156
American Airlines
Mon 5/25
BUF - SDF • 1 stop
Top airlines
Cheapest • from $303 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Buffalo and Louisville. You'll need at least 1 connection.
Insights
Insights
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Top layover airports
Cheapest • Avg $335 (round-trip)
Shortest trip • 4h 06m (one-way)
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Louisville!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Buffalo to Louisville (BUF-SDF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to Louisville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to Louisville

Tue, May 19 - Sat, May 23
Multiple Airlines Logo
11:36 am - 11:34 am
BUF
-
SDF
23h 58m
2 stops
Multiple Airlines Logo
8:06 pm - 8:04 pm
SDF
-
BUF
23h 58m
1 stop
$265Multiple Airlines
Sat, May 30 - Wed, Jun 3
Multiple Airlines Logo
12:41 pm - 1:27 pm
BUF
-
SDF
24h 46m
2 stops
Multiple Airlines Logo
8:06 pm - 8:04 pm
SDF
-
BUF
23h 58m
1 stop
$273Multiple Airlines
Sat, May 30 - Wed, Jun 3
Delta Logo
12:31 pm - 7:50 pm
BUF
-
SDF
7h 19m
1 stop
Delta Logo
5:47 pm - 11:59 pm
SDF
-
BUF
6h 12m
1 stop
$303Delta
Mon, May 25 - Wed, May 27
United Airlines Logo
6:09 am - 1:35 pm
BUF
-
SDF
7h 26m
2 stops
United Airlines Logo
10:00 am - 2:25 pm
SDF
-
BUF
4h 25m
1 stop
$308United Airlines
Mon, Jun 1 - Mon, Jun 8
American Airlines Logo
6:00 am - 10:17 am
BUF
-
SDF
4h 17m
1 stop
American Airlines Logo
6:25 pm - 11:54 pm
SDF
-
BUF
5h 29m
1 stop
$311American Airlines
Tue, Jun 2 - Fri, Jun 5
Delta Logo
6:25 am - 9:59 am
BUF
-
SDF
3h 34m
1 stop
Delta Logo
5:52 pm - 11:59 pm
SDF
-
BUF
6h 07m
1 stop
$345Delta
Fri, Jun 5 - Mon, Jun 8
Delta Logo
6:25 am - 9:59 am
BUF
-
SDF
3h 34m
1 stop
Delta Logo
6:34 pm - 11:59 pm
SDF
-
BUF
5h 25m
1 stop
$353Delta
Mon, Jun 1 - Mon, Jun 8
Southwest Logo
11:25 am - 9:45 pm
BUF
-
SDF
10h 20m
2 stops
Southwest Logo
5:05 pm - 12:10 am
SDF
-
BUF
7h 05m
1 stop
$356Southwest
Tue, Jul 21 - Thu, Jul 23
Delta Logo
6:05 am - 1:27 pm
BUF
-
SDF
7h 22m
1 stop
Delta Logo
11:17 am - 6:41 pm
SDF
-
BUF
7h 24m
1 stop
$375Delta
Wed, Oct 21 - Sat, Oct 24
Southwest Logo
2:00 pm - 10:50 pm
BUF
-
SDF
8h 50m
2 stops
Southwest Logo
7:05 am - 12:25 pm
SDF
-
BUF
5h 20m
1 stop
$380Southwest
Booking Insights

KAYAK's insights & trends for Buffalo to Louisville flights

Get data-powered insights and trends into flights from Buffalo to Louisville to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Buffalo to Louisville?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Buffalo to Louisville were found on Delta ($303) and United Airlines ($308).

Good to know

Cheapest flight$156
Flight from Buffalo to Louisville

When to book flights from Buffalo to Louisville

Are your dates flexible? Find out the best times to travel from Buffalo to Louisville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Buffalo to Louisville

  • What is the cheapest flight from Buffalo to Louisville?

    In the last 3 days, the lowest price for a flight from Buffalo to Louisville was $156 for a one-way ticket and $265 for a round-trip.

  • Do I need a passport to fly between Buffalo and Louisville?

    No, a passport isn't needed to fly from Buffalo to Louisville. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Buffalo to Louisville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Buffalo to Louisville?

    SkyTeam, and oneworld are the airline alliances operating flights between Buffalo and Louisville, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Buffalo to Louisville, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Buffalo to Louisville are Delta and American Airlines. With an average price for the route of $335 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $414 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Buffalo to Louisville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to Louisville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to Louisville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to Louisville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Louisville with an airline and back to Buffalo with another airline. Booking your flights between Buffalo and SDF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to Louisville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Louisville from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Buffalo to Louisville

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to Louisville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to Louisville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8459 reviews
7.9Comfort
7.2Food
8.5Crew
7.8Entertainment
8.1Boarding
Airline reviews

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

2.0 MediocreNicholas, Apr 2026
LGA - CLT
Read more Delta reviews

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Transparency from pilots, quick boarding and exiting the plane, staff greeted to each and everyone,

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

I love Delta the flight attendants were personable and the flight arrived 1/2 earlier thanks expected. All a plus. The gate agent was a bit flustered but even with that I still had a good experience. Her supervisor assisted me.

I am still at the Airport! Delayed Delayed and Delyaed

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

Wifi was spotty. Tray table was very dirty when I sat down.

Flight was extremely hot and they made us check our bags when the space was nowhere near full

Same plane as RDU to LGA — internet not working. Pilot issue of some sort at end of prior flight - I was on same plane for my connection. Late/delayed —

My flight from LGA was cancelled and my rebooked flight from JFK was delayed numerous times. I will now be getting home after 2am.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

The gate got changed several times and the flight was delayed over an hour. Awful experience

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

Everything you need to know for your flight from Buffalo to Louisville

Information on your arrival and departure airports