Cheap flights from San Francisco to Great Diamond Island

View AU$191 flight on Tue, 23 Sep. 2025Opens in a new window

Popular airlines from San Francisco to Great Diamond Island

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Cheap Flights from San Francisco (SJC) to Great Diamond Island (PWM)

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.

American Airlines
Mon, 29 Sep. - Mon, 6 Oct.
SFO
San Francisco
PWM
Portland
AU$616 Return, found 1 day ago
AU$616
Return
found 1 day ago
Select American Airlines flight, departing Mon, 29 Sep. from San Francisco to Portland, returning Mon, 6 Oct., priced at AU$616 found 1 day ago
American Airlines
Mon, 29 Sep. - Mon, 6 Oct.
SFO
San Francisco
PWM
Portland
AU$624 Return, found 1 day ago
AU$624
Return
found 1 day ago
Select American Airlines flight, departing Mon, 29 Sep. from San Francisco to Portland, returning Mon, 6 Oct., priced at AU$624 found 1 day ago
Delta
Mon, 29 Sep. - Mon, 6 Oct.
SFO
San Francisco
PWM
Portland
AU$641 Return, found 1 day ago
AU$641
Return
found 1 day ago
Select Delta flight, departing Mon, 29 Sep. from San Francisco to Portland, returning Mon, 6 Oct., priced at AU$641 found 1 day ago
American Airlines
Mon, 29 Sep. - Mon, 6 Oct.
SFO
San Francisco
PWM
Portland
AU$660 Return, found 1 day ago
AU$660
Return
found 1 day ago
Select American Airlines flight, departing Mon, 29 Sep. from San Francisco to Portland, returning Mon, 6 Oct., priced at AU$660 found 1 day ago
Delta
Mon, 29 Sep. - Mon, 6 Oct.
SFO
San Francisco
PWM
Portland
AU$666 Return, found 1 day ago
AU$666
Return
found 1 day ago
Select Delta flight, departing Mon, 29 Sep. from San Francisco to Portland, returning Mon, 6 Oct., priced at AU$666 found 1 day ago
United
Mon, 29 Sep. - Mon, 6 Oct.
SFO
San Francisco
PWM
Portland
AU$778 Return, found 1 day ago
AU$778
Return
found 1 day ago
Select United flight, departing Mon, 29 Sep. from San Francisco to Portland, returning Mon, 6 Oct., priced at AU$778 found 1 day ago

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

September is typically the cheapest month to fly

From AU$310 - AU$1,033 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.