Cheap flights from Seattle to Treasure Island

View AU$106 flight on Tue, 11 Nov. 2025Opens in a new window

Popular airlines from Seattle to Treasure Island

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Cheap Flights from Seattle (SEA) to Treasure Island (SJC)

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
Wed, 3 Sep. - Wed, 10 Sep.
SEA
Seattle
SFO
San Francisco
AU$213 Return, found 4 days ago
AU$213
Return
found 4 days ago
Select Alaska Airlines flight, departing Wed, 3 Sep. from Seattle to San Francisco, returning Wed, 10 Sep., priced at AU$213 found 4 days ago
Alaska Airlines
Wed, 3 Sep. - Wed, 10 Sep.
PAE
Seattle
SFO
San Francisco
AU$213 Return, found 4 days ago
AU$213
Return
found 4 days ago
Select Alaska Airlines flight, departing Wed, 3 Sep. from Seattle to San Francisco, returning Wed, 10 Sep., priced at AU$213 found 4 days ago
Alaska Airlines
Sat, 23 Aug. - Sun, 24 Aug.
SEA
Seattle
SFO
San Francisco
AU$226 Return, found 18 hours ago
AU$226
Return
found 18 hours ago
Select Alaska Airlines flight, departing Sat, 23 Aug. from Seattle to San Francisco, returning Sun, 24 Aug., priced at AU$226 found 18 hours ago
Delta
Thu, 18 Sep. - Wed, 24 Sep.
SEA
Seattle
SFO
San Francisco
AU$241 Return, found 6 days ago
AU$241
Return
found 6 days ago
Select Delta flight, departing Thu, 18 Sep. from Seattle to San Francisco, returning Wed, 24 Sep., priced at AU$241 found 6 days ago
American Airlines
Wed, 3 Sep. - Wed, 10 Sep.
SEA
Seattle
SFO
San Francisco
AU$246 Return, found 4 days ago
AU$246
Return
found 4 days ago
Select American Airlines flight, departing Wed, 3 Sep. from Seattle to San Francisco, returning Wed, 10 Sep., priced at AU$246 found 4 days ago
United
Wed, 3 Sep. - Wed, 10 Sep.
SEA
Seattle
SFO
San Francisco
AU$267 Return, found 4 days ago
AU$267
Return
found 4 days ago
Select United flight, departing Wed, 3 Sep. from Seattle to San Francisco, returning Wed, 10 Sep., priced at AU$267 found 4 days ago

Find the cheapest month to fly from Seattle (SEA) to San Francisco (SFO)

January is typically the cheapest month to fly

From AU$148 - AU$315 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.