£371 Cheap Flights to San Juan Island

View £371 flight on Tue, 10 Nov 2026Opens in a new window

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Cheap round-trip flights to San Juan Island

Prices were available within the past 7 days and start at £371 for one-way flights and £481 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Icelandair
Thu, 18 Feb - Thu, 11 Mar
LGW
London
SEA
Seattle
£481 Return, found 3 hours ago
£481
Return
found 3 hours ago
Select Icelandair flight, departing Thu, 18 Feb from London to Seattle, returning Thu, 11 Mar, priced at £481 found 3 hours ago
Delta
Wed, 3 Mar - Mon, 8 Mar
LHR
London
SEA
Seattle
£522 Return, found 6 days ago
£522
Return
found 6 days ago
Select Delta flight, departing Wed, 3 Mar from London to Seattle, returning Mon, 8 Mar, priced at £522 found 6 days ago
KLM
Wed, 3 Mar - Mon, 8 Mar
LHR
London
SEA
Seattle
£522 Return, found 6 days ago
£522
Return
found 6 days ago
Select KLM flight, departing Wed, 3 Mar from London to Seattle, returning Mon, 8 Mar, priced at £522 found 6 days ago
Air France
Wed, 3 Mar - Mon, 8 Mar
LHR
London
SEA
Seattle
£527 Return, found 6 days ago
£527
Return
found 6 days ago
Select Air France flight, departing Wed, 3 Mar from London to Seattle, returning Mon, 8 Mar, priced at £527 found 6 days ago
Virgin Atlantic
Thu, 19 Nov - Thu, 3 Dec
LHR
London
SEA
Seattle
£531 Return, found 6 days ago
£531
Return
found 6 days ago
Select Virgin Atlantic flight, departing Thu, 19 Nov from London to Seattle, returning Thu, 3 Dec, priced at £531 found 6 days ago

Frequently asked questions

How do I find cheap flights to San Juan Island that have flexible change policies?
At Expedia, we've been channeling our inner yoga master to bring you the most flexible fares available. Simply tick the "No change fee" box directly below the "Flexible change policies" filter to find your perfect flight to San Juan Island.
Which airlines fly to San Juan Island?
Dig out your passport, pack your bags and choose between these quality airlines that have flights into or near San Juan Island:

  • Alaska Airlines - 8,781 flights to or near San Juan Island each month, including 8,781 flights to Seattle - Tacoma Intl. Airport (SEA) per month.
  • Delta Air Lines - 4,186 flights to or near San Juan Island each month, including 4,186 flights to Seattle - Tacoma Intl. Airport (SEA) per month.
  • United Airlines - 828 flights to or near San Juan Island each month, including 828 flights to Seattle - Tacoma Intl. Airport (SEA) per month.

How can I find cheap tickets to San Juan Island?
A great strategy for getting your hands on cheap airfares is to be flexible with your travel dates. Begin with searching for your flight to San Juan Island, then click on the "flexible dates" box to compare prices for nearby days. Another tip? Book ahead of time. For an idea of costs, £481 was the lowest price for a flight to San Juan Island in the last seven days.
How much is a flight to San Juan Island?
You could have locked in a return flight to San Juan Island from anywhere between £481 and £531 in the last seven days. For one-way journeys leaving from London (LGW), the lowest amount paid during this period was £371.
What are the most popular airports to fly into in San Juan Island?
Start organising your San Juan Island escape by reserving one of the 15,456 flights every month to Seattle - Tacoma Intl. Airport (SEA). This is the region's principal gateway.
When is the cheapest time to fly to San Juan Island?
Jetting off on a Tuesday, followed by a Monday, is usually the best way to get the cheapest flight. Stay away from the weekends if you can, because Saturday is typically the most expensive day. Spend the dollars you saved having a ball in San Juan Island instead!
How much is a plane ticket to San Juan Island?
In the last seven days, fares to San Juan Island fluctuated from £481 to £531.
What months are the cheapest to book a flight to San Juan Island?
February is the best month to get your hands on a fantastic deal to San Juan Island. Bear in mind that the most expensive time to make a purchase in the USA isn't during the height of summer, but the month of December.

Travel information

Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Return price
£481

Trending flights to San Juan Island

Prices were available within the past 7 days and start at £371 for one-way flights and £481 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Icelandair
Thu, 18 Feb - Thu, 11 Mar
LGW
London
SEA
Seattle
£481 Return, found 3 hours ago
£481
Return
found 3 hours ago
Select Icelandair flight, departing Thu, 18 Feb from London to Seattle, returning Thu, 11 Mar, priced at £481 found 3 hours ago

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