Cheap flights to Jefferson County

View €327 flight on Thu, 4 Jun 2026Opens in a new window

Popular airlines to Jefferson County

  • Alaska Airlines

  • Delta

  • American Airlines

  • United

  • Southwest Airlines

  • Frontier Airlines

  • JetBlue Airways

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Cheap round-trip flights to Jefferson County

Prices were available within the past 7 days and start at €327 for one-way flights and €491 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Mon, 23 Nov - Sun, 29 Nov
BER
Berlin
SEA
Seattle
€491 Return, found 3 days ago
€491
Return
found 3 days ago
Select Aer Lingus flight, departing Mon, 23 Nov from Berlin to Seattle, returning Sun, 29 Nov, priced at €491 found 3 days ago
Icelandair
Thu, 15 Oct - Sun, 25 Oct
DUB
Dublin
SEA
Seattle
€494 Return, found 6 days ago
€494
Return
found 6 days ago
Select Icelandair flight, departing Thu, 15 Oct from Dublin to Seattle, returning Sun, 25 Oct, priced at €494 found 6 days ago
Finnair
Fri, 19 Jun - Tue, 30 Jun
DUB
Dublin
SEA
Seattle
€507 Return, found 22 hours ago
€507
Return
found 22 hours ago
Select Finnair flight, departing Fri, 19 Jun from Dublin to Seattle, returning Tue, 30 Jun, priced at €507 found 22 hours ago
Aer Lingus
Sat, 9 May - Sat, 16 May
DUB
Dublin
SEA
Seattle
€525 Return, found 16 hours ago
€525
Return
found 16 hours ago
Select Aer Lingus flight, departing Sat, 9 May from Dublin to Seattle, returning Sat, 16 May, priced at €525 found 16 hours ago
American Airlines
Sat, 2 May - Mon, 18 May
DUB
Dublin
SEA
Seattle
€529 Return, found 6 days ago
€529
Return
found 6 days ago
Select American Airlines flight, departing Sat, 2 May from Dublin to Seattle, returning Mon, 18 May, priced at €529 found 6 days ago
Iberia
Sat, 2 May - Mon, 18 May
DUB
Dublin
SEA
Seattle
€531 Return, found 6 days ago
€531
Return
found 6 days ago
Select Iberia flight, departing Sat, 2 May from Dublin to Seattle, returning Mon, 18 May, priced at €531 found 6 days ago
Air France
Thu, 7 May - Mon, 18 May
DUB
Dublin
SEA
Seattle
€536 Return, found 5 days ago
€536
Return
found 5 days ago
Select Air France flight, departing Thu, 7 May from Dublin to Seattle, returning Mon, 18 May, priced at €536 found 5 days ago
Scandinavian Airlines
Mon, 1 Jun - Sun, 7 Jun
DUB
Dublin
SEA
Seattle
€537 Return, found 1 day ago
€537
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Mon, 1 Jun from Dublin to Seattle, returning Sun, 7 Jun, priced at €537 found 1 day ago
British Airways
Thu, 4 Jun - Thu, 11 Jun
DUB
Dublin
SEA
Seattle
€543 Return, found 1 day ago
€543
Return
found 1 day ago
Select British Airways flight, departing Thu, 4 Jun from Dublin to Seattle, returning Thu, 11 Jun, priced at €543 found 1 day ago
KLM
Thu, 7 May - Mon, 18 May
DUB
Dublin
SEA
Seattle
€547 Return, found 5 days ago
€547
Return
found 5 days ago
Select KLM flight, departing Thu, 7 May from Dublin to Seattle, returning Mon, 18 May, priced at €547 found 5 days ago

Trending flights to Jefferson County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Thu, 15 Oct - Sun, 25 Oct
DUB
Dublin
SEA
Seattle
€494 Return, found 6 days ago
€494
Return
found 6 days ago
Select Icelandair flight, departing Thu, 15 Oct from Dublin to Seattle, returning Sun, 25 Oct, priced at €494 found 6 days ago

Frequently asked questions

How do I find cheap flights to Jefferson County that have flexible change policies?
When it comes to flying these days, flexibility is key. That's why we've added a "No change fee" search function to help you track down flexible, affordable fares to Jefferson County. It's near the top left of your screen right underneath the "Flexible change policies" heading.
Which airlines fly to Jefferson County?
Settle on your travel dates and then take off towards Jefferson County with one of these leading airlines:

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

How can I find cheap tickets to Jefferson County?
To nab a terrific deal to Jefferson County, book in advance. Also make use of Expedia's "flexible dates" feature at the top of your search results. This will compare prices for nearby days. In the last seven days, €491 was the best price for a flight to Jefferson County.
How much is a flight to Jefferson County?
The cost of a round-trip flight to Jefferson County in the last seven days ranged between €491 and €610. If you were flying one way from Dublin (DUB), you could have gotten a great deal from just €327.
What are the most popular airports to fly into in Jefferson County?
The primary gateway to Jefferson County, roughly 15,456 flights land at Seattle - Tacoma Intl. Airport (SEA) each month. Scout around for an unbeatable deal, lock in your fare and get ready to discover this amazing region.
How much is a plane ticket to Jefferson County?
In the last seven days, plane tickets to Jefferson County ranged between €491 and €610. Prices generally depend on the departure time, cabin class, airline and how early you make your booking.
What is the best time to go to Jefferson County?
If you'd love to check out Jefferson County's leading city at its busiest, visit Port Townsend sometime during March, April and June. Similar to most places in the Northern Hemisphere, summer here begins June 20, with average temperatures of between 13ºC and 18ºC.
What months are the cheapest to book a flight to Jefferson County?
The cheapest month to land a fabulous deal to Jefferson County is February, whereas prices are at their highest in December. Avoid this month if you want to save your dollars.

Book with confidence

About Jefferson County

Expedia offers flights to Jefferson County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Jefferson County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Jefferson County
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