Cheap Flights from Portland to San Juan Islands

View €69 flight on Sat, 11 Oct 2025Opens in a new window

Popular airlines from Portland to San Juan Islands

  • Aer Lingus

    Aer Lingus

  • Lufthansa

    Lufthansa

  • British Airways

    British Airways

  • Turkish Airlines

    Turkish Airlines

  • American Airlines

    American Airlines

  • Air Serbia

    Air Serbia

  • Swiss International Air Lines

    Swiss International Air Lines

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Cheap flights from Portland to San Juan Islands (PDX-SEA)

Prices were available within the past 7 days and start at €69 for one-way flights and €102 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 28 Oct - Sat, 8 Nov
PDX
Portland
SEA
Seattle
€102 Return, found 4 days ago
€102
Return
found 4 days ago
Select Delta flight, departing Tue, 28 Oct from Portland to Seattle, returning Sat, 8 Nov, priced at €102 found 4 days ago
Delta
Tue, 28 Oct - Sat, 8 Nov
PDX
Portland
SEA
Seattle
€119 Return, found 4 days ago
€119
Return
found 4 days ago
Select Delta flight, departing Tue, 28 Oct from Portland to Seattle, returning Sat, 8 Nov, priced at €119 found 4 days ago
Delta
Tue, 28 Oct - Sat, 8 Nov
PDX
Portland
SEA
Seattle
€145 Return, found 4 days ago
€145
Return
found 4 days ago
Select Delta flight, departing Tue, 28 Oct from Portland to Seattle, returning Sat, 8 Nov, priced at €145 found 4 days ago
American Airlines
Tue, 28 Oct - Sat, 8 Nov
PDX
Portland
SEA
Seattle
€186 Return, found 4 days ago
€186
Return
found 4 days ago
Select American Airlines flight, departing Tue, 28 Oct from Portland to Seattle, returning Sat, 8 Nov, priced at €186 found 4 days ago
United
Tue, 28 Oct - Sat, 8 Nov
PDX
Portland
SEA
Seattle
€211 Return, found 4 days ago
€211
Return
found 4 days ago
Select United flight, departing Tue, 28 Oct from Portland to Seattle, returning Sat, 8 Nov, priced at €211 found 4 days ago
Hawaiian Airlines
Tue, 28 Oct - Sat, 8 Nov
PDX
Portland
SEA
Seattle
€1,165 Return, found 4 days ago
€1,165
Return
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, 28 Oct from Portland to Seattle, returning Sat, 8 Nov, priced at €1,165 found 4 days ago
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