Cheap Alaska Airlines flights Pittsburgh (PIT) to Seattle (SEA)

Make use of the “Price (lowest to highest)” filter on Expedia to find cheap Alaska Airlines return flights from $197 from PIT to SEA. Affordable one-way options 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.

Alaska Airlines flights to Seattle are usually cheaper in the quieter months of January and February. Whether you’re searching for a round-trip or one-way ticket, you could land a better deal then.

Search for affordable Alaska Airlines flights from Pittsburgh Intl. Airport (PIT) to Seattle - Tacoma Intl. Airport (SEA) one to three months ahead of 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. Regardless of fare class and journey, the best day to book a domestic flight is usually Sunday and the most expensive day is typically 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.

Alaska Airlines offers direct flights from Pittsburgh Intl. Airport (PIT) to Seattle - Tacoma Intl. Airport (SEA), with 7 departures each week. Simply apply the “Nonstop” and “Airline” filters while searching on Expedia to see all direct Alaska Airlines flights to SEA.

Take off from Pittsburgh Intl. Airport (PIT) for Seattle - Tacoma Intl. Airport (SEA) on a nonstop Alaska Airlines flight, and you’ll be in the skies for approximately 5h 32m.

Taking off from PIT at 7:28PM UTC-5, the first Alaska Airlines flight to SEA arrives at 10:00PM UTC-8. Flying early means you’ll be less likely to encounter delays.* Not a morning person? The last Alaska Airlines flight from PIT to SEA departs at 7:28PM UTC-5 and touches down at 10:00PM UTC-8.*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 flights from Pittsburgh Intl. Airport (PIT) to Seattle come in to Seattle - Tacoma Intl. Airport (SEA). This is the main entry point here.

Flying from PIT to SEA with Alaska Airlines comes with a host of benefits, including a rewarding loyalty program and an excellent in-flight experience. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to redeem on select future travel purchases. That’s on top of 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.

You’ll likely be on a Boeing 737-900 or a Boeing 737-800 when flying Alaska Airlines from Pittsburgh Intl. Airport (PIT) to Seattle - Tacoma Intl. Airport (SEA). However, keep in mind that a different plane may be used depending on operational factors.

Depending on the type of ticket you purchased, a fee typically applies if you modify or cancel your booking more than 24 hours after it’s confirmed. To secure flexible fares, select our “Changes included” or “No cancel fee” filter when looking for flights. For more information on canceling or modifying your reservation, go to “Trips,” select your flight and click on “Manage Booking.”