Alaska Airlines Cheap Flights from Seattle to San Jose: AS SEA→SJC

View HK$1,421 flight on Wed, 31 Dec 2025Opens in a new window
  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Prices were available within the past 7 days and start at HK$1,421 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Seattle (SEA) to San Jose (SJC)

February is typically the cheapest month to fly

From HK$599 - HK$1,185 per traveller.
Seattle to San Jose route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Norman Y. Mineta San Jose Intl.
Distance
1114 km
Average flight time
2 hours 12 mins

Frequently asked questions

How much is an Alaska Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Scoring cheap one-way Alaska Airlines flights from SEA to SJC from HK$1,421 on Expedia is simple — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares for your next exciting getaway.**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.
What is the cheapest month to fly from SEA to SJC with Alaska Airlines?
Browse for one-way or round-trip flights to San Jose in April or November. You could find a cheap fare with Alaska Airlines during these off-season months.
Does Alaska Airlines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Alaska Airlines has direct flights from Seattle - Tacoma Intl. Airport (SEA) to Norman Y. Mineta San Jose Intl. Airport (SJC), with 37 departures each week. Simply choose the "Nonstop" and "Airline" filters during your search on Expedia to find all direct Alaska Airlines flights to SJC.
How long does it take to fly from SEA to SJC with Alaska Airlines?
It takes approximately 2h 15m to fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Norman Y. Mineta San Jose Intl. Airport (SJC) with Alaska Airlines.
Which day of the week has the most Alaska Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Alaska Airlines has the most flights from Seattle - Tacoma Intl. Airport (SEA) to Norman Y. Mineta San Jose Intl. Airport (SJC) on Sunday. With up to 6 daily departures, you'll get the most options and flexibility on this day.
What airports does Alaska Airlines fly into in San Jose?
When travelling from Seattle - Tacoma Intl. Airport (SEA) to San Jose with Alaska Airlines, you'll probably land at Norman Y. Mineta San Jose Intl. Airport (SJC). This is the airline's main hub in this destination. Other nearby airports like San Francisco Intl. Airport (SFO) and Oakland Intl. Airport (OAK) may have more affordable flights, so it's a good idea to consider all options on Expedia.
What type of plane does Alaska Airlines fly from Seattle - Tacoma Intl. Airport (SEA) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Alaska Airlines generally uses Boeing 737 MAX 9 planes for flights from Seattle - Tacoma Intl. Airport (SEA) to Norman Y. Mineta San Jose Intl. Airport (SJC). This carrier also operates the Boeing 737-900 on this route. Bear in mind that aircraft type can change due to operational requirements, so the plane you board could be different on the day you travel.
Can I change or cancel my Alaska Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
It's generally possible to cancel or modify your flight, although there may be additional fees if your booking was made more than 24 hours ago. Want to keep your options open? Use Expedia's "No cancel fee" or "Changes included" filter to find flights that won't penalize you if you have to adjust your plans. To modify your itinerary, go to "Trips," select your flight and click on "Manage Booking" for more information.
*Available to Expedia members.