$352 Cheap Alaska Airlines flights Yuma (YUM) to Seattle (SEA)

Landing cheap one-way Alaska Airlines flights from YUM to SEA from $352 on Expedia is simple — just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares from $610 for your next exciting vacation.**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 cheap Alaska Airlines flights from Yuma Intl. Airport (YUM) to Seattle - Tacoma Intl. Airport (SEA) one to three months before your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and itinerary, the best day to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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 YUM to SEA with Alaska Airlines, filter your results by "Early Morning" and "Morning." Booking an early flight generally 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 YUM to SEA more enjoyable with top-tier customer service and an excellent in-flight experience. You may even earn points with Mileage Plan. Be sure to join Expedia's 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.