Cheap Alaska Airlines flights Phoenix (PHX) to Seattle (SEA)

Set the “Price (lowest to highest)” filter on Expedia to look for cheap Alaska Airlines round-trip flights from PHX to SEA. Affordable one-way options are also on offer.**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.

January is one of the least expensive months to fly to Seattle with Alaska Airlines. You could also find great prices on one-way and round-trip fares in February.

To find cheap Alaska Airlines fares from Sky Harbor Intl. Airport (PHX) to Seattle - Tacoma Intl. Airport (SEA), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence what you pay. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**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.

Alaska Airlines has direct flights from Sky Harbor Intl. Airport (PHX) to Seattle - Tacoma Intl. Airport (SEA), with 61 weekly departures. Simply use the “Nonstop” and “Airline” filters during your search on Expedia to find all direct Alaska Airlines flights to SEA.

From takeoff till landing, a direct Alaska Airlines flight from Sky Harbor Intl. Airport (PHX) to Seattle - Tacoma Intl. Airport (SEA) takes around 3h 16m.

Alaska Airlines operates the most flights from Sky Harbor Intl. Airport (PHX) to Seattle - Tacoma Intl. Airport (SEA) on Thursday. With up to 10 daily departures, you’ll get the most flexibility on this day.

The first flight from PHX to SEA with Alaska Airlines leaves at 6:00AM UTC-7. You’ll touch down at 8:21AM UTC-8. The last Alaska Airlines flight of the day takes off at 8:59PM UTC-7 and arrives at 11:16PM UTC-8. With approximately 20% fewer cancellations for morning and mid-morning departures, setting off early is often the best choice.**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.

Most Alaska Airlines flights from Sky Harbor Intl. Airport (PHX) to Seattle arrive at Seattle - Tacoma Intl. Airport (SEA). This is the airline’s main entry point to the city. It’s worth checking out Expedia for flights to nearby airports like Snohomish County - Paine Field Airport (PAE), as tickets may be cheaper.

Traveling from PHX to SEA with Alaska Airlines means enjoying a host of benefits, including top-tier customer service and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That’s in addition to the Mileage Plan points you can earn with Alaska Airlines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Alaska Airlines usually flies Boeing 737 MAX 9 planes for flights from Sky Harbor Intl. Airport (PHX) to Seattle - Tacoma Intl. Airport (SEA). This carrier also operates the Boeing 737-900 on this route. Bear in mind that aircraft type can change due to operational reasons, so the plane you board could be different when you leave.

Depending on the type of fare you purchased, a fee is typically charged if you cancel or reschedule your booking more than 24 hours after it’s confirmed. To secure flexible fares, select our “Changes included” or “No cancel fee” filter when searching for flights. For additional information on modifying or canceling your reservation, visit “Trips,” select your flight and tick “Manage Booking.”