Cheap flights from Portland to San Juan Island

View AU$106 flight on Sat, 16 Aug. 2025Opens in a new window

Popular airlines from Portland to San Juan Island

  • 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 Portland (PDX) to San Juan Island (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
Sat, 13 Sep. - Wed, 17 Sep.
PDX
Portland
SEA
Seattle
AU$150 Return, found 1 day ago
AU$150
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 13 Sep. from Portland to Seattle, returning Wed, 17 Sep., priced at AU$150 found 1 day ago
Delta
Sat, 13 Sep. - Wed, 17 Sep.
PDX
Portland
SEA
Seattle
AU$151 Return, found 1 day ago
AU$151
Return
found 1 day ago
Select Delta flight, departing Sat, 13 Sep. from Portland to Seattle, returning Wed, 17 Sep., priced at AU$151 found 1 day ago
Alaska Airlines
Sat, 30 Aug. - Sat, 6 Sep.
PDX
Portland
SEA
Seattle
AU$179 Return, found 6 days ago
AU$179
Return
found 6 days ago
Select Alaska Airlines flight, departing Sat, 30 Aug. from Portland to Seattle, returning Sat, 6 Sep., priced at AU$179 found 6 days ago
Delta
Sat, 30 Aug. - Sat, 6 Sep.
PDX
Portland
SEA
Seattle
AU$180 Return, found 6 days ago
AU$180
Return
found 6 days ago
Select Delta flight, departing Sat, 30 Aug. from Portland to Seattle, returning Sat, 6 Sep., priced at AU$180 found 6 days ago
American Airlines
Mon, 1 Sep. - Mon, 8 Sep.
PDX
Portland
SEA
Seattle
AU$515 Return, found 4 days ago
AU$515
Return
found 4 days ago
Select American Airlines flight, departing Mon, 1 Sep. from Portland to Seattle, returning Mon, 8 Sep., priced at AU$515 found 4 days ago
United
Fri, 12 Sep. - Sun, 14 Sep.
PDX
Portland
SEA
Seattle
AU$1,630 Return, found 6 days ago
AU$1,630
Return
found 6 days ago
Select United flight, departing Fri, 12 Sep. from Portland to Seattle, returning Sun, 14 Sep., priced at AU$1,630 found 6 days ago
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