Cheap flights from San Francisco to Northwest Washington

View AU$104 flight on Sat, 6 Dec. 2025Opens in a new window

Popular airlines from San Francisco to Northwest Washington

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from San Francisco (SJC) to Northwest Washington (SEA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, 16 Sep. - Tue, 23 Sep.
SJC
San Jose
SEA
Seattle
AU$208 Return, found 1 day ago
AU$208
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 16 Sep. from San Jose to Seattle, returning Tue, 23 Sep., priced at AU$208 found 1 day ago
Delta
Tue, 9 Sep. - Tue, 16 Sep.
SFO
San Francisco
SEA
Seattle
AU$208 Return, found 19 hours ago
AU$208
Return
found 19 hours ago
Select Delta flight, departing Tue, 9 Sep. from San Francisco to Seattle, returning Tue, 16 Sep., priced at AU$208 found 19 hours ago
Delta
Tue, 19 Aug. - Wed, 20 Aug.
SFO
San Francisco
SEA
Seattle
AU$209 Return, found 2 days ago
AU$209
Return
found 2 days ago
Select Delta flight, departing Tue, 19 Aug. from San Francisco to Seattle, returning Wed, 20 Aug., priced at AU$209 found 2 days ago
Hawaiian Airlines
Wed, 27 Aug. - Wed, 3 Sep.
SFO
San Francisco
SEA
Seattle
AU$213 Return, found 6 days ago
AU$213
Return
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, 27 Aug. from San Francisco to Seattle, returning Wed, 3 Sep., priced at AU$213 found 6 days ago
American Airlines
Tue, 16 Sep. - Tue, 23 Sep.
SJC
San Jose
SEA
Seattle
AU$241 Return, found 1 day ago
AU$241
Return
found 1 day ago
Select American Airlines flight, departing Tue, 16 Sep. from San Jose to Seattle, returning Tue, 23 Sep., priced at AU$241 found 1 day ago
United
Tue, 9 Sep. - Tue, 16 Sep.
SFO
San Francisco
SEA
Seattle
AU$262 Return, found 19 hours ago
AU$262
Return
found 19 hours ago
Select United flight, departing Tue, 9 Sep. from San Francisco to Seattle, returning Tue, 16 Sep., priced at AU$262 found 19 hours ago

Find the cheapest month to fly from San Francisco (SFO) to Bellingham (BLI)

February is typically the cheapest month to fly

From AU$319 - AU$712 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.