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$119 Cheap Flights from Buffalo (BUF) to Louisville (SDF)

View $119 flight on Fri, Sep 11, 2026Opens 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 $119 for one-way flights and $238 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Wed, Oct 28 - Fri, Oct 30
BUF
Buffalo
SDF
Louisville
$238 Roundtrip, found 4 hours ago
$238
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Wed, Oct 28 from Buffalo to Louisville, returning Fri, Oct 30, priced at $238 found 4 hours ago
American Airlines
Sat, Sep 26 - Tue, Sep 29
BUF
Buffalo
SDF
Louisville
$239 Roundtrip, found 4 hours ago
$239
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sat, Sep 26 from Buffalo to Louisville, returning Tue, Sep 29, priced at $239 found 4 hours ago
United
Sat, Sep 26 - Tue, Sep 29
BUF
Buffalo
SDF
Louisville
$239 Roundtrip, found 4 hours ago
$239
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Sep 26 from Buffalo to Louisville, returning Tue, Sep 29, priced at $239 found 4 hours ago
Southwest Airlines
Sat, Sep 26 - Tue, Sep 29
BUF
Buffalo
SDF
Louisville
$239 Roundtrip, found 4 hours ago
$239
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Sat, Sep 26 from Buffalo to Louisville, returning Tue, Sep 29, priced at $239 found 4 hours ago
United
Sat, Sep 26 - Tue, Sep 29
BUF
Buffalo
SDF
Louisville
$244 Roundtrip, found 4 hours ago
$244
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Sep 26 from Buffalo to Louisville, returning Tue, Sep 29, priced at $244 found 4 hours ago
Southwest Airlines
Sat, Oct 24 - Tue, Oct 27
BUF
Buffalo
SDF
Louisville
$247 Roundtrip, found 17 hours ago
$247
Roundtrip
found 17 hours ago
Select Southwest Airlines flight, departing Sat, Oct 24 from Buffalo to Louisville, returning Tue, Oct 27, priced at $247 found 17 hours ago
United
Sat, Sep 26 - Tue, Sep 29
BUF
Buffalo
SDF
Louisville
$251 Roundtrip, found 4 hours ago
$251
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Sep 26 from Buffalo to Louisville, returning Tue, Sep 29, priced at $251 found 4 hours ago
Southwest Airlines
Wed, Dec 16 - Mon, Dec 21
BUF
Buffalo
SDF
Louisville
$251 Roundtrip, found 1 day ago
$251
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Dec 16 from Buffalo to Louisville, returning Mon, Dec 21, priced at $251 found 1 day ago
United
Sat, Sep 26 - Tue, Sep 29
BUF
Buffalo
SDF
Louisville
$256 Roundtrip, found 4 hours ago
$256
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Sep 26 from Buffalo to Louisville, returning Tue, Sep 29, priced at $256 found 4 hours ago
Delta
Sat, Oct 24 - Tue, Oct 27
BUF
Buffalo
SDF
Louisville
$256 Roundtrip, found 17 hours ago
$256
Roundtrip
found 17 hours ago
Select Delta flight, departing Sat, Oct 24 from Buffalo to Louisville, returning Tue, Oct 27, priced at $256 found 17 hours ago

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 $433
SDF
Louisville Intl.
CheapestClosest
Average driving time to city center9 min
Flights from $433

What you need to know for your flight from Buffalo Niagara Intl. to Louisville Intl.

Buffalo (BUF) to Louisville (SDF) at a glance

Travel to Louisville (SDF) from Buffalo (BUF) with a selection of airlines catering to this domestic short-haul route. You can compare flights from Buffalo to Louisville, choosing between full-service and budget carriers to discover the best itinerary for your travel needs and budget. As you prepare to explore the iconic sights and vibrant neighborhoods of Louisville, find essential information about flights from Buffalo Niagara International Airport to Louisville International Airport.

  • Fastest flight duration: around 3h 15m in-flight, plus roughly 1h 15m layover with one stop
  • Route distance: roughly 500 miles (805 km)
  • Flights per week: around 9 departures on average
  • Typical fares (one-way): economy tickets often range from $110–$370, depending on seasonality and how far ahead you book

Flights from Buffalo Niagara International Airport (BUF) to Louisville International Airport (SDF)

According to recent traveler bookings, here are the top airlines favored for flights from Buffalo to Louisville, primarily offering one-stop services. Common layover points include Detroit Metropolitan Wayne County Airport (DTW) with a layover of about 55 minutes, O'Hare International Airport (ORD) at approximately 1 hour and 15 minutes, and Baltimore Washington International Thurgood Marshall Airport (BWI) with a 1 hour and 30 minutes layover. This variety allows you to tailor your journey by balancing price, total travel time, and cabin class for the most suitable itinerary.

  • American Airlines: This full-service airline provides one-stop flights, holding a share of about 37% of departures on this route. One-way ticket prices generally fall between $115 and $365, with an in-flight duration of 3 hours 15 minutes and an overall journey time of approximately 4 hours 30 minutes, including layover.
  • Delta: Delta is another full-service option, offering one-stop services that make up around 31% of departures on this route. Fares for one-way trips typically range from $125 to $380, with a flight time of 3 hours 15 minutes and a total travel time of roughly 4 hours 30 minutes, including stops.
  • Southwest Airlines: As a low-cost carrier, Southwest Airlines provides one-stop service, accounting for nearly 19% of departures on this route. One-way fares usually range from $110 to $435, with a flight duration of 3 hours 15 minutes and a total journey time of about 4 hours 30 minutes, factoring in a layover.
  • United: Offering one-stop flights, United Airlines is a full-service carrier that represents approximately 13% of departures on this route. One-way fares typically vary from $120 to $330, with an in-flight time of 3 hours 15 minutes and a complete travel duration of around 4 hours 30 minutes, including any layover.

Best time to fly from Buffalo (BUF) to Louisville (SDF)

The most popular months for travelers flying from Buffalo to Louisville are March, September, and October, when peak temperatures in Louisville reach up to 69.8°F in September. If you prefer quieter travel, consider August, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 75.6°F. For better deals, October usually offers the lowest average one-way fare around $195. Flight availability peaks in December, with approximately 13 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: October usually offers good deals with average one-way fare around $195, roughly 18% cheaper than the yearly average.
  • More budget-friendly months to fly: February, May, and April typically offer average one-way fares of around $210.
  • Most flight options: December has the highest number of flights from Buffalo to Louisville, with approximately 13 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January33.1°F (0.6°C)Average8$232
February36.5°F (2.5°C)Average8$207
March46.2°F (7.9°C)High8$235
April55.6°F (13.1°C)Average10$213
May65.7°F (18.7°C)Average8$211
June73.9°F (23.3°C)Low10$281
July77.2°F (25.1°C)Average9$258
August75.6°F (24.2°C)Low8$248
September69.8°F (21.0°C)High8$217
October58.1°F (14.5°C)High12$195
November45.9°F (7.7°C)Low8$293
December38.8°F (3.8°C)Average13$280

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Buffalo (BUF) to Louisville (SDF)

  • Buffalo to Louisville (BUF-LOU): Bowman Field Airport (LOU) is located approximately 5 miles from Louisville International Airport (SDF).

How to find the best prices for flights from Buffalo (BUF) to Louisville (SDF)

Getting some of the best deals on flights from Buffalo to Louisville is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking at least two months in advance, although most travelers tend to book between two to eight weeks ahead. Morning departures, from 5 AM to 12 PM, often offer lower prices and are the most popular flight times. Additionally, flying on Monday typically results in cheaper prices, while Friday remains the most popular travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Louisville International Airport from Buffalo Niagara International Airport

Louisville welcomes travelers from Buffalo with a range of transport options based on price, convenience, and proximity. Here's how to reach Louisville efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Louisville, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Louisville International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Louisville International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Louisville International Airport, the Louisville Bus Station, a bus station, is located about 6.9 miles away by car, making it easily accessible for travelers needing bus services.

Frequently asked questions

How much does a flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.) cost?
You can find cheap one-way flights from $119 and cheap return flights from $238 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.) with Expedia. One-way flights typically cost between $154 and $578, and return flights often range between $330 and $1026. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.)?
September is the cheapest month to fly from Buffalo, NY (BUF) to Louisville, KY (SDF), with average round-trip fares around $296. This is about 25% lower than the average price throughout the year, as demand tends to drop after the summer. Other budget-friendly months to consider are February and May.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.)?
Enter BUF to SDF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.)?
American Airlines is one of the cheapest airlines offering connecting flights from Buffalo Niagara Intl. (BUF) to Louisville Intl. (SDF), with round-trip tickets starting from around $236. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.)?
For flights from Buffalo (BUF) to Louisville (SDF), September and February are the best months to consider. Return flights average around $296, making it an affordable option. These months typically see less travel activity, allowing for a more comfortable journey.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.)?
The earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.) usually departs at around 5:00 AM, operated by American Airlines. This route is seasonal and active in December. Catching an early flight can help you arrive in Louisville with plenty of time to explore. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.)?
The most popular departure times for flights from Buffalo, NY (BUF) to Louisville, KY (SDF) are in the early morning, from 6am to 9am. About 33% of passengers prefer this time window. Many major carriers, including Delta, American Airlines, and Southwest Airlines, offer flights during this window. This timing is convenient for travelers wanting to arrive in Louisville early in the day.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.)?
A flight from BUF to SDF with a layover takes around 4 hours 50 minutes, with the route covering approximately 493 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.)?
First class is available on flights from BUF to SDF. First class cabins are available on:

  • Delta Air Lines
  • American Airlines
  • United Airlines

How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Louisville from Buffalo Niagara Intl. (BUF)?
If you're planning to travel to Louisville from Buffalo Niagara Intl. (BUF), you can fly into Louisville Intl. (SDF) Some flights may connect through major hubs like Washington Dulles Intl. (IAD), Baltimore Washington Intl. Thurgood Marshall (BWI), Liberty Intl. (EWR) before reaching Louisville. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.) flight and hotel package?
Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.) Louisville Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive 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, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Louisville, KY (SDF-Louisville Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Louisville Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$238
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 October. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $119 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

*Flight schedules are subject to change.

*Available to One Key members.

 

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