Cheap Flights to San Juan Islands: San Juan Islands Flight Deals

View €319 flight on Tue, 12 May 2026Opens in a new window

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Cheap round-trip flights to San Juan Islands

Prices were available within the past 7 days and start at €319 for one-way flights and €492 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Thu, 15 Oct - Sat, 24 Oct
DUB
Dublin
SEA
Seattle
€492 Return, just found
€492
Return
just found
Select Icelandair flight, departing Thu, 15 Oct from Dublin to Seattle, returning Sat, 24 Oct, priced at €492 just found
Finnair
Tue, 16 Jun - Mon, 29 Jun
DUB
Dublin
SEA
Seattle
€507 Return, found 3 days ago
€507
Return
found 3 days ago
Select Finnair flight, departing Tue, 16 Jun from Dublin to Seattle, returning Mon, 29 Jun, priced at €507 found 3 days ago
Scandinavian Airlines
Sat, 23 May - Sat, 30 May
DUB
Dublin
SEA
Seattle
€512 Return, found 2 days ago
€512
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Sat, 23 May from Dublin to Seattle, returning Sat, 30 May, priced at €512 found 2 days ago
Aer Lingus
Tue, 9 Jun - Tue, 23 Jun
DUB
Dublin
SEA
Seattle
€524 Return, found 1 day ago
€524
Return
found 1 day ago
Select Aer Lingus flight, departing Tue, 9 Jun from Dublin to Seattle, returning Tue, 23 Jun, priced at €524 found 1 day ago
Iberia
Fri, 22 May - Tue, 26 May
DUB
Dublin
SEA
Seattle
€529 Return, found 2 days ago
€529
Return
found 2 days ago
Select Iberia flight, departing Fri, 22 May from Dublin to Seattle, returning Tue, 26 May, priced at €529 found 2 days ago

Frequently asked questions

How do I find cheap flights to San Juan Islands that have flexible change policies?
At Expedia, we've been channeling our inner Olympic gymnast to help you locate the most flexible airfares around. Simply mark the "No change fee" box under the "Flexible change policies" heading to find your dream flight to San Juan Islands.
Which airlines fly to San Juan Islands?
Pack your bags and choose between these major airlines that operate flights in or near San Juan Islands:

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

How can I find cheap tickets to San Juan Islands?
Book well ahead of time, consider alternative airports, use frequent flyer miles — you're not short of ways! One more is to make use of Expedia's "flexible dates" feature. Search for your San Juan Islands flight, then check out the prices for nearby dates. In the last seven days, the best price for a flight to San Juan Islands was €492.
How much is a flight to San Juan Islands?
You could have nabbed a round-trip ticket to San Juan Islands from anywhere between €492 and €566 in the last seven days. For one-way journeys leaving from Dublin (DUB), the lowest amount paid during this time was €319.
What are the most popular airports to fly into in San Juan Islands?
Start organising your San Juan Islands escape by securing a seat on one of the 15,456 flights a month to Seattle - Tacoma Intl. Airport (SEA). This is the region's primary gateway.
How much is a plane ticket to San Juan Islands?
In the last seven days, tickets cost between €492 and €566. Have a look at our fantastic deals to San Juan Islands, pick your favourite and get ready for your next fun holiday!
What months are the cheapest to book a flight to San Juan Islands?
The ideal month to score a fabulous deal to San Juan Islands is February, whereas prices are higher in December. Avoid this time if you're watching your pennies.

Travel information

Destination airport
Lake Union Seaplane Base
Destination airport IATA code
LKE
Destination city name
Seattle
Return price
€189

Trending flights to San Juan Islands

Prices were available within the past 7 days and start at €319 for one-way flights and €492 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Thu, 15 Oct - Sat, 24 Oct
DUB
Dublin
SEA
Seattle
€492 Return, just found
€492
Return
just found
Select Icelandair flight, departing Thu, 15 Oct from Dublin to Seattle, returning Sat, 24 Oct, priced at €492 just found

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