Cheap Flights from London to San Juan Island

View €466 flight on Wed, 22 Oct 2025Opens in a new window

Popular airlines from London to San Juan Island

  • 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 London to San Juan Island (LON-SEA)

Prices were available within the past 7 days and start at €466 for one-way flights and €498 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Mon, 22 Sep - Tue, 7 Oct
LGW
London
SEA
Seattle
€498 Return, found 2 days ago
€498
Return
found 2 days ago
Select Icelandair flight, departing Mon, 22 Sep from London to Seattle, returning Tue, 7 Oct, priced at €498 found 2 days ago
Icelandair
Mon, 15 Sep - Tue, 30 Sep
LHR
London
SEA
Seattle
€501 Return, found 3 days ago
€501
Return
found 3 days ago
Select Icelandair flight, departing Mon, 15 Sep from London to Seattle, returning Tue, 30 Sep, priced at €501 found 3 days ago
Aer Lingus
Mon, 8 Sep - Wed, 24 Sep
LHR
London
SEA
Seattle
€543 Return, found 1 day ago
€543
Return
found 1 day ago
Select Aer Lingus flight, departing Mon, 8 Sep from London to Seattle, returning Wed, 24 Sep, priced at €543 found 1 day ago
Lufthansa
Sun, 16 Nov - Fri, 21 Nov
LHR
London
SEA
Seattle
€545 Return, found 4 days ago
€545
Return
found 4 days ago
Select Lufthansa flight, departing Sun, 16 Nov from London to Seattle, returning Fri, 21 Nov, priced at €545 found 4 days ago
Brussels Airlines
Sun, 16 Nov - Fri, 21 Nov
LHR
London
SEA
Seattle
€573 Return, found 4 days ago
€573
Return
found 4 days ago
Select Brussels Airlines flight, departing Sun, 16 Nov from London to Seattle, returning Fri, 21 Nov, priced at €573 found 4 days ago
Air Canada
Sun, 16 Nov - Fri, 21 Nov
LHR
London
SEA
Seattle
€577 Return, found 4 days ago
€577
Return
found 4 days ago
Select Air Canada flight, departing Sun, 16 Nov from London to Seattle, returning Fri, 21 Nov, priced at €577 found 4 days ago
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