Cheap flights from Portland to Treasure Island

View AU$60 flight on Wed, 1 Oct. 2025Opens in a new window

Popular airlines from Portland to Treasure Island

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Cheap Flights from Portland (PDX) 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.

Hawaiian Airlines
Sat, 20 Sep. - Mon, 6 Oct.
PDX
Portland
SFO
San Francisco
AU$119 Return, found 3 days ago
AU$119
Return
found 3 days ago
Select Hawaiian Airlines flight, departing Sat, 20 Sep. from Portland to San Francisco, returning Mon, 6 Oct., priced at AU$119 found 3 days ago
Alaska Airlines
Sat, 6 Sep. - Sat, 13 Sep.
PDX
Portland
SFO
San Francisco
AU$172 Return, found 2 days ago
AU$172
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat, 6 Sep. from Portland to San Francisco, returning Sat, 13 Sep., priced at AU$172 found 2 days ago
Alaska Airlines
Thu, 14 Aug. - Mon, 18 Aug.
PDX
Portland
SFO
San Francisco
AU$174 Return, found 6 days ago
AU$174
Return
found 6 days ago
Select Alaska Airlines flight, departing Thu, 14 Aug. from Portland to San Francisco, returning Mon, 18 Aug., priced at AU$174 found 6 days ago
Delta
Thu, 14 Aug. - Mon, 18 Aug.
PDX
Portland
SFO
San Francisco
AU$197 Return, found 6 days ago
AU$197
Return
found 6 days ago
Select Delta flight, departing Thu, 14 Aug. from Portland to San Francisco, returning Mon, 18 Aug., priced at AU$197 found 6 days ago
United
Thu, 14 Aug. - Mon, 18 Aug.
PDX
Portland
SFO
San Francisco
AU$205 Return, found 6 days ago
AU$205
Return
found 6 days ago
Select United flight, departing Thu, 14 Aug. from Portland to San Francisco, returning Mon, 18 Aug., priced at AU$205 found 6 days ago
American Airlines
Sat, 6 Sep. - Sat, 13 Sep.
PDX
Portland
SFO
San Francisco
AU$244 Return, found 2 days ago
AU$244
Return
found 2 days ago
Select American Airlines flight, departing Sat, 6 Sep. from Portland to San Francisco, returning Sat, 13 Sep., priced at AU$244 found 2 days ago

Find the cheapest month to fly from Portland (PDX) to San Francisco (SFO)

October is typically the cheapest month to fly

From AU$74 - AU$268 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.