$219 Cheap Alaska Airlines flights Portland (PDX) to Louisville (SDF)

Grab cheap return Alaska Airlines flights from $437 from PDX to SDF by organizing your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $219 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for one-way or return flights to Louisville in January or December. You could find lower fares with Alaska Airlines during these off-peak times.

Start searching one to three months ahead of your travel date to score cheaper fares on Alaska Airlines flights from Portland Intl. Airport (PDX) to Louisville Intl. Airport (SDF). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, and you can enjoy significant savings on domestic journeys.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Click on the “Nonstop” filter when searching for direct Alaska Airlines flights from PDX to SDF. It’s also a great way to compare other carriers servicing the same direct trip.

To find the earliest departures from PDX to SDF with Alaska Airlines, filter your results by “Morning” and “Early Morning.” Choosing an early flight generally means you’re less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Louisville Intl. Airport (SDF) is the primary Louisville hub for Alaska Airlines flights from Portland Intl. Airport (PDX).

Alaska Airlines makes traveling from PDX to SDF more enjoyable with a rewarding loyalty program and top-tier customer service. You even have the chance to collect points with Mileage Plan. Make sure you sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making a booking, but your airline may add a charge after that. For more information about altering your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to make changes without being charged, apply the “Changes included” or “No cancel fee” filter when planning your next adventure.