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

View $119 flight on Fri, Oct 30, 2026Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Buffalo Niagara Intl. Airport (BUF)

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Cheap Flights from Louisville to Buffalo (SDF-BUF)

Prices were available within the past 7 days and start at $119 for one-way flights and $239 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Sep 2 - Sat, Sep 5
SDF
Louisville
BUF
Buffalo
$239 Roundtrip, found 23 hours ago
$239
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Wed, Sep 2 from Louisville to Buffalo, returning Sat, Sep 5, priced at $239 found 23 hours ago
Southwest Airlines
Wed, Oct 7 - Sat, Oct 10
SDF
Louisville
BUF
Buffalo
$239 Roundtrip, found 1 day ago
$239
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Oct 7 from Louisville to Buffalo, returning Sat, Oct 10, priced at $239 found 1 day ago
Southwest Airlines
Wed, Oct 7 - Sat, Oct 10
SDF
Louisville
BUF
Buffalo
$245 Roundtrip, found 1 day ago
$245
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Oct 7 from Louisville to Buffalo, returning Sat, Oct 10, priced at $245 found 1 day ago
Southwest Airlines
Tue, Sep 22 - Sat, Sep 26
SDF
Louisville
BUF
Buffalo
$247 Roundtrip, found 2 days ago
$247
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, Sep 22 from Louisville to Buffalo, returning Sat, Sep 26, priced at $247 found 2 days ago
Southwest Airlines
Fri, Oct 30 - Mon, Nov 2
SDF
Louisville
BUF
Buffalo
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Fri, Oct 30 from Louisville to Buffalo, returning Mon, Nov 2, priced at $250 found 1 day ago
United
Thu, Sep 24 - Sat, Sep 26
SDF
Louisville
BUF
Buffalo
$251 Roundtrip, found 9 hours ago
$251
Roundtrip
found 9 hours ago
Select United flight, departing Thu, Sep 24 from Louisville to Buffalo, returning Sat, Sep 26, priced at $251 found 9 hours ago
Southwest Airlines
Thu, Sep 24 - Sat, Sep 26
SDF
Louisville
BUF
Buffalo
$251 Roundtrip, found 9 hours ago
$251
Roundtrip
found 9 hours ago
Select Southwest Airlines flight, departing Thu, Sep 24 from Louisville to Buffalo, returning Sat, Sep 26, priced at $251 found 9 hours ago
Southwest Airlines
Sat, Sep 19 - Sat, Sep 26
SDF
Louisville
BUF
Buffalo
$255 Roundtrip, found 3 days ago
$255
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Sat, Sep 19 from Louisville to Buffalo, returning Sat, Sep 26, priced at $255 found 3 days ago
Delta
Wed, Oct 7 - Sat, Oct 10
SDF
Louisville
BUF
Buffalo
$256 Roundtrip, found 1 day ago
$256
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 7 from Louisville to Buffalo, returning Sat, Oct 10, priced at $256 found 1 day ago
Delta
Sat, Sep 26 - Tue, Sep 29
SDF
Louisville
BUF
Buffalo
$256 Roundtrip, found 1 day ago
$256
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Sep 26 from Louisville to Buffalo, returning Tue, Sep 29, priced at $256 found 1 day ago

Alternative airports near Buffalo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Buffalo Niagara Intl. BUF. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $477
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $477

Find the cheapest month to fly from Louisville (SDF) to Buffalo (BUF)

February is typically the cheapest month to fly

From $156 - $357 per traveler.

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

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

Travel from Louisville (SDF) to Buffalo (BUF) with a range of airlines on this domestic short-haul route. Discover options for cheap flights from Louisville to Buffalo, comparing both full-service and budget-friendly carriers. This allows you to select the itinerary that best suits your budget and travel schedule as you prepare to explore the iconic sights and vibrant neighborhoods of Buffalo. Check out the essential details for flights departing from Louisville International Airport to Buffalo Niagara International Airport.

  • Fastest flight duration: around 3h 15m in-flight, plus roughly 1h 30m 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 $100–$355, depending on seasonality and how far ahead you book

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

Based on recent traveler bookings, here are the top airlines favored for flights from Louisville to Buffalo, primarily for their one-stop services. Common layover points include Detroit Metropolitan Wayne County Airport (DTW) with an average layover of about 1 hour and 30 minutes, O'Hare International Airport (ORD) at approximately 1 hour and 45 minutes, and Philadelphia International Airport (PHL) with a 1-hour layover. These options allow you to strategically balance price, total travel time, and cabin class for the best travel experience.

  • American Airlines: This full-service airline provides one-stop journeys with one-way ticket prices generally between $100 and $345. It represents about 35% of departures on this route, featuring an in-flight duration of 3 hours 15 minutes and a total travel time of approximately 4 hours 30 minutes, including layover time.
  • Delta: Another full-service option, Delta offers one-stop flights with one-way fares typically ranging from $105 to $355. It makes up roughly 32% of departures along this route, with a flight duration of 3 hours 15 minutes and an overall journey time of around 4 hours 30 minutes, factoring in the layover.
  • Southwest Airlines: As a low-cost carrier, Southwest provides one-stop services with one-way fares generally between $120 and $335. This airline accounts for about 17% of departures on this route, with an in-air time of 3 hours 15 minutes and a total travel duration of roughly 4 hours 30 minutes, including layover time.
  • United: A full-service airline, United offers one-stop flights with one-way fares typically ranging from $110 to $610. It constitutes approximately 16% of the departures on this route, featuring a flight time of 3 hours 15 minutes and a total journey time of around 4 hours 30 minutes, including layover considerations.

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

The most popular months for travelers flying from Louisville to Buffalo are March, April, and October, when peak temperatures in Buffalo reach up to 53.2°F in October. If you prefer quieter travel, consider January, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 25.5°F. For better deals, February usually offers the lowest average one-way fare around $191. Flight availability peaks in October, with approximately 12 flights per week, making it easier to find convenient departure times. July has the fewest flights, with approximately 7 flights per week.

  • Cheapest time to fly: February usually offers good deals with average one-way fare around $191, roughly 15% cheaper than the yearly average.
  • Another budget-friendly time to fly: May typically offers an average one-way fare of around $194.
  • Most flight options: October has the highest number of flights from Louisville to Buffalo, with approximately 12 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January25.5°F (-3.6°C)Low8$228
February26.1°F (-3.3°C)Average8$191
March34.3°F (1.3°C)High8$243
April45.0°F (7.2°C)High10$276
May57.7°F (14.3°C)Average9$194
June66.0°F (18.9°C)Low8$231
July72.0°F (22.2°C)Average7$211
August70.7°F (21.5°C)Average8$218
September64.6°F (18.1°C)Average8$212
October53.2°F (11.8°C)High12$212
November41.4°F (5.2°C)Low9$240
December33.1°F (0.6°C)Average8$240

*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 Louisville (SDF) to Buffalo (BUF)

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

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

Getting some of the best deals on flights from Louisville to Buffalo 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. Departures in the afternoon (12 PM-6 PM) often offer lower prices, while morning flights (5 AM-12 PM) are the most popular. Additionally, flying on Wednesday generally yields cheaper rates, whereas Friday remains the busiest 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 Buffalo Niagara International Airport from Louisville International Airport

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

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Buffalo, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Buffalo Niagara International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Buffalo Niagara 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 Buffalo Niagara International Airport, Buffalo-Depew Station (a train station) is located about 2.6 miles away by car, while University Station (a metro station) is situated approximately 6.5 miles from the airport, also accessible by car.

Frequently asked questions

How much does a flight from Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) cost?
You can find cheap one-way flights from $119 and cheap return flights from $239 Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) with Expedia. One-way flights usually range from $131 to $542, and return flights typically cost between $316 and $974. 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 Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara 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 Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
November is the cheapest month to fly from Louisville, KY (SDF) to Buffalo, NY (BUF), with average round-trip fares around $296. This is about 26% lower than the average price throughout the year, as travel demand typically decreases after the summer. Other budget-friendly months include May and July.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Enter SDF to BUF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Southwest Airlines is one of the cheapest airlines offering connecting flights from Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) with a layover in Chicago (MDW) starting from around $521. 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 Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
To find a cheap flight from Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara 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 Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
For flights from Louisville, KY (SDF) to Buffalo, NY (BUF), November and May are the best months to travel. November offers an average price of around $296, making it a budget-friendly option as the holiday season approaches. May is also popular, providing a pleasant spring experience with moderate prices.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The earliest flight from Louisville International Airport (SDF) to Buffalo Niagara International Airport (BUF) typically leaves at around 5:00 AM, operated by American Airlines. Catching this early flight can give you a head start on your day in Buffalo. 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 Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
When flying from Louisville, KY (SDF) to Buffalo, NY (BUF), the most popular departure times are from 6am to 9am. This accounts for around 37% of total traffic. Airlines such as American Airlines, Delta Air Lines, and United Airlines operate flights during this window. Many travelers prefer this timing as it allows them to start their day early and maximize their time at their destination.
How long does it take to fly from Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Flights from SDF to BUF with one stop typically take around 4 hours 20 minutes, 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 Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
You can fly first class between SDF and BUF. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines

How do I earn miles on a Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight with Expedia?
It's easy to earn miles on a Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara 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 Buffalo from Louisville Intl. (SDF)?
From Louisville Intl. (SDF), you can fly into Buffalo Niagara Intl. (BUF) to reach Buffalo. Some flights may connect through major hubs like O'Hare Intl. (ORD), Washington Dulles Intl. (IAD), Midway Intl. (MDW) before reaching Buffalo. 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 Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) at the last minute?
Typically, booking a last minute flight from Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara 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 Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight and hotel package?
Securing a Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) Buffalo 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 Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
If you booked your Louisville, KY (SDF-Louisville Intl.) to Buffalo, NY (BUF-Buffalo Niagara 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
Louisville Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$238
Distance
492 mi

Book with confidence

Louisville to Buffalo Flights

The cheapest times to fly from Louisville to Buffalo

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 Louisville to Buffalo are during the month of September. You can find some of the cheapest flights from Louisville to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Louisville to Buffalo

Sunday is one of the best days to book for cheap flights from Louisville to Buffalo: 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 Louisville to Buffalo

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 Louisville to Buffalo 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 Louisville to Buffalo 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 Louisville to Buffalo 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.

 

Louisville to Buffalo Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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