Cheap flights from Seattle to Treasure Island

View AU$104 flight on Tue, 23 Sep. 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, 10 Sep. - Wed, 17 Sep.
SEA
Seattle
SFO
San Francisco
AU$208 Return, found 6 hours ago
AU$208
Return
found 6 hours ago
Select Alaska Airlines flight, departing Wed, 10 Sep. from Seattle to San Francisco, returning Wed, 17 Sep., priced at AU$208 found 6 hours ago
Delta
Wed, 10 Sep. - Wed, 17 Sep.
SEA
Seattle
SFO
San Francisco
AU$208 Return, found 6 hours ago
AU$208
Return
found 6 hours ago
Select Delta flight, departing Wed, 10 Sep. from Seattle to San Francisco, returning Wed, 17 Sep., priced at AU$208 found 6 hours ago
Alaska Airlines
Wed, 10 Sep. - Wed, 17 Sep.
PAE
Seattle
SFO
San Francisco
AU$208 Return, found 6 hours ago
AU$208
Return
found 6 hours ago
Select Alaska Airlines flight, departing Wed, 10 Sep. from Seattle to San Francisco, returning Wed, 17 Sep., priced at AU$208 found 6 hours ago
Hawaiian Airlines
Thu, 4 Sep. - Tue, 9 Sep.
PAE
Seattle
SFO
San Francisco
AU$223 Return, found 1 day ago
AU$223
Return
found 1 day ago
Select Hawaiian Airlines flight, departing Thu, 4 Sep. from Seattle to San Francisco, returning Tue, 9 Sep., priced at AU$223 found 1 day ago
American Airlines
Wed, 3 Sep. - Wed, 10 Sep.
SEA
Seattle
SFO
San Francisco
AU$242 Return, found 1 day ago
AU$242
Return
found 1 day ago
Select American Airlines flight, departing Wed, 3 Sep. from Seattle to San Francisco, returning Wed, 10 Sep., priced at AU$242 found 1 day ago
United
Wed, 10 Sep. - Wed, 17 Sep.
SEA
Seattle
SFO
San Francisco
AU$262 Return, found 6 hours ago
AU$262
Return
found 6 hours ago
Select United flight, departing Wed, 10 Sep. from Seattle to San Francisco, returning Wed, 17 Sep., priced at AU$262 found 6 hours 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.