$153 Cheap Alaska Airlines flights Portland (PDX) to Liberia (LIR)

Apply the "Price (lowest to highest)" filter on Expedia to look for cheap Alaska Airlines return flights from $313 from PDX to LIR. Affordable one-way options from $153 are available as well.**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 Alaska Airlines flights from PDX to LIR about one month before you want to leave. The most affordable time to reserve an international flight is generally 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. Regardless of fare class and itinerary, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Travelers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**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.

To find the earliest departure from PDX to LIR with Alaska Airlines, filter your results by "Morning" and "Early Morning." Booking an early flight usually means cancellations are less likely.**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.

Alaska Airlines makes flying from PDX to LIR more enjoyable with a rewarding loyalty program and top-tier customer service. You could even start collecting 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.