SDF - BUF

$119 Find Cheap Flights from Louisville to Buffalo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Buffalo departing on 9/15. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Buffalo, 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 Louisville to Buffalo, as well as popular online travel agencies
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Cheap Flights from Louisville to Buffalo (SDF-BUF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Buffalo 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 Louisville to Buffalo

Sat, Sep 20 - Sat, Oct 4
Delta Logo
10:32 am - 4:00 pmSDF-BUF
5h 28m1 stop
Delta Logo
6:15 am - 9:46 amBUF-SDF
3h 31m1 stop
$197Delta
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Thu, Sep 4 - Sun, Sep 7
Delta Logo
7:14 pm - 10:59 pmSDF-BUF
3h 45m1 stop
Delta Logo
6:20 am - 9:44 amBUF-SDF
3h 24m1 stop
$208Delta
Find Deal
Fri, Sep 19 - Tue, Sep 30
Delta Logo
6:33 pm - 10:56 pmSDF-BUF
4h 23m1 stop
Delta Logo
4:43 pm - 9:13 pmBUF-SDF
4h 30m1 stop
$242Delta
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Thu, Sep 4 - Sun, Sep 7
American Airlines Logo
11:15 am - 5:55 pmSDF-BUF
6h 40m2 stops
American Airlines Logo
6:00 am - 10:31 amBUF-SDF
4h 31m1 stop
$253American Airlines
Find Deal
Tue, Sep 23 - Tue, Sep 30
United Airlines Logo
1:40 pm - 11:34 pmSDF-BUF
9h 54m2 stops
United Airlines Logo
6:30 am - 11:33 amBUF-SDF
5h 03m1 stop
$262United Airlines
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Sun, Sep 21 - Sat, Oct 4
Delta Logo
6:33 pm - 11:16 pmSDF-BUF
4h 43m1 stop
Delta Logo
6:15 am - 9:46 amBUF-SDF
3h 31m1 stop
$267Delta
Find Deal
Mon, Sep 22 - Tue, Sep 30
American Airlines Logo
6:30 pm - 10:55 pmSDF-BUF
4h 25m1 stop
American Airlines Logo
7:35 am - 2:03 pmBUF-SDF
6h 28m1 stop
$268American Airlines
Find Deal
Tue, Sep 23 - Thu, Oct 2
United Airlines Logo
1:40 pm - 11:34 pmSDF-BUF
9h 54m2 stops
United Airlines Logo
5:55 pm - 10:30 pmBUF-SDF
4h 35m1 stop
$273United Airlines
Find Deal
Sat, Sep 27 - Tue, Sep 30
Southwest Logo
3:10 pm - 9:40 pmSDF-BUF
6h 30m1 stop
Southwest Logo
5:50 am - 3:15 pmBUF-SDF
9h 25m2 stops
$349Southwest
Find Deal
Thu, Sep 18 - Mon, Sep 22
Southwest Logo
7:10 pm - 11:30 pmSDF-BUF
4h 20m1 stop
Southwest Logo
4:25 pm - 10:50 pmBUF-SDF
6h 25m2 stops
$352Southwest
Find Deal
Booking Insights

KAYAK's insights & trends for Louisville to Buffalo flights

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

What’s the cheapest day of the week to fly from Louisville to Buffalo?

The average price of all round-trip flights from Louisville to Buffalo clicked on KAYAK for each day over the last 12 months.

When flying from Louisville to Buffalo, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Louisville, you’ll find the best rates on Fridays and the most expensive ones on Mondays.

What is the cheapest month to fly from Louisville to Buffalo?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Buffalo, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to Buffalo is May, where tickets cost $309 (return) on average. On the other hand, the most expensive months are April and January, where the average cost of round-trip tickets is $759 and $720 respectively.

Good to know

Low seasonJanuary
Cheapest flight$119
Best time to beat the crowds but there is an average 57% increase in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from Louisville to Buffalo

When to book flights from Louisville to Buffalo

Are your dates flexible? Find out the best times to travel from Louisville to Buffalo 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 Louisville to Buffalo

  • What is the cheapest flight from Louisville to Buffalo?

    In the last 3 days, the lowest price for a flight from Louisville to Buffalo was $119 for a one-way ticket and $197 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

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

  • Which airline alliances offer flights from Louisville to Buffalo?

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

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

    The two airlines most popular with KAYAK users for flights from Louisville to Buffalo are Delta and United Airlines. With an average price for the route of $387 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $414 and an overall rating of 7.4.

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

    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 Louisville to Buffalo.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buffalo from Louisville 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 Louisville to Buffalo?

    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 Buffalo with an airline and back to Louisville with another airline. Booking your flights between Louisville and BUF 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 Louisville to Buffalo?

    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 Buffalo from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Louisville to Buffalo

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Buffalo. 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 Louisville to Buffalo? 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.
8.0
DeltaOverall score based on 7981 reviews
7.3Food
8.5Crew
7.9Entertainment
8.2Boarding
7.9Comfort
Airline reviews

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

2.0 MediocreRosa, Jul 2025TPA - JFK
Read more Delta reviews

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

I like for how they process during check in. It was very smoothly.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

Flight was cancelled 3 hrs AFTER etd. Thetefore Missed connection from JFK to New Zealand . No accommodation provided… This cost ne aporox 1000 USD in extra expenses and turned whst should have been a 24 hr trip ftom Boston - New Zealand into a VERY expensive , late 70+ hr nightmare … Complete nonsense!!!

Overall fine, but the delay was annoying and the reasons for the delay were not communicated. The crew on board were phenomenal!

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

Whenever a passenger purchase a ticket his advantage number should automatically to his information. It's not everyone remember the number. You request for your number and American airline agent say they will email it....and they never email anything and you loose your mileage just because you don't remember your number. It should automatically go your information and associate with your email account at all times

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

Flight was empty so had a whole row to myself. Still had to wait to get the bag due to the negligence at Palm Springs departure.

I flew out of Reagan National. My flight was delayed, delayed, delayed, and then canceled ...THREE TIMES over TWO DAYS. Staff were seemingly not empowered to provide information on why the flights were screwed up. A real nightmare.

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