Cheap Alaska Airlines flights San Jose (SJC) to Seattle (SEA)

Use the “Price (lowest to highest)” filter on Expedia to search for cheap Alaska Airlines round-trip flights from SJC to SEA. Affordable one-way fares are available too.**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 round-trip or one-way flights to Seattle in January or February. You could find lower fares with Alaska Airlines during these off-season months.

Search for affordable Alaska Airlines flights from Norman Y. Mineta San Jose Intl. Airport (SJC) to Seattle - Tacoma Intl. Airport (SEA) one to three months ahead of your departure. 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 ideal 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 has direct flights from Norman Y. Mineta San Jose Intl. Airport (SJC) to Seattle - Tacoma Intl. Airport (SEA), with 37 departures each week. Simply use the “Nonstop” and “Airline” filters during your search on Expedia to show all direct Alaska Airlines flights to SEA.

Depart Norman Y. Mineta San Jose Intl. Airport (SJC) for Seattle - Tacoma Intl. Airport (SEA) on a nonstop Alaska Airlines flight, and you’ll be airborne for approximately 2h 16m.

Wednesday has the most Alaska Airlines flights from Norman Y. Mineta San Jose Intl. Airport (SJC) to Seattle - Tacoma Intl. Airport (SEA). With 6 daily departures, this is the best day of the week to find something that will suit your plans.

The first Alaska Airlines flight from SJC to SEA takes off at 8:10AM UTC-8, touching down at 10:30AM UTC-8. If you want to jet off later in the day, the last Alaska Airlines flight leaves SJC at 7:37PM UTC-8 and touches down at SEA at 9:51PM UTC-8. Flying before noon is generally a smart choice as morning and mid-morning flights are 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.

Seattle - Tacoma Intl. Airport (SEA) is the main Seattle hub for Alaska Airlines flights from Norman Y. Mineta San Jose Intl. Airport (SJC).

Jetting off from SJC to SEA with Alaska Airlines comes with a range of perks, including a rewarding loyalty program and an excellent in-flight experience. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to use 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.

For the Norman Y. Mineta San Jose Intl. Airport (SJC) to Seattle - Tacoma Intl. Airport (SEA) route, Alaska Airlines typically operates Boeing 737-800 and Boeing 737-900 planes. Don’t forget that last-minute changes are possible for operational needs, meaning your flight may be on a different aircraft.

Changes are typically free within 24 hours of booking, but your airline may charge you after that time. For more details about altering your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to make changes without additional costs, apply the “Changes included” or “No cancel fee” filter when planning your next trip.