$148 Cheap Flights from Buffalo (BUF) to Louisville (SDF)

You can find cheap one-way flights from $148 and cheap return flights from $303 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.

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.

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.

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.

First class is available on flights from BUF to SDF. First class cabins are available on:

• Delta Air Lines
• American Airlines
• United Airlines

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.