Cheap flights to Jefferson County

Featured airlines

    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 15% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Jefferson County

Prices were available within the past 7 days and start at €324 for one-way flights and €495 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Thu, 7 Nov - Wed, 13 Nov
DUB
Dublin
SEA
Seattle - Tacoma Intl.
€495 Return, found 11 hours ago
€495
Return
found 11 hours ago
Select Icelandair flight, departing Thu, 7 Nov from Dublin to Seattle - Tacoma Intl., returning Wed, 13 Nov, priced at €495 found 11 hours ago
Aer Lingus
Mon, 11 Nov - Mon, 18 Nov
DUB
Dublin
SEA
Seattle - Tacoma Intl.
€541 Return, found 4 days ago
€541
Return
found 4 days ago
Select Aer Lingus flight, departing Mon, 11 Nov from Dublin to Seattle - Tacoma Intl., returning Mon, 18 Nov, priced at €541 found 4 days ago
American Airlines
Thu, 9 Jan - Thu, 16 Jan
DUB
Dublin
SEA
Seattle - Tacoma Intl.
€622 Return, found 5 days ago
€622
Return
found 5 days ago
Select American Airlines flight, departing Thu, 9 Jan from Dublin to Seattle - Tacoma Intl., returning Thu, 16 Jan, priced at €622 found 5 days ago
British Airways
Fri, 1 Nov - Fri, 8 Nov
DUB
Dublin
SEA
Seattle - Tacoma Intl.
€623 Return, found 7 hours ago
€623
Return
found 7 hours ago
Select British Airways flight, departing Fri, 1 Nov from Dublin to Seattle - Tacoma Intl., returning Fri, 8 Nov, priced at €623 found 7 hours ago
JetBlue Airways
Fri, 14 Mar - Sun, 23 Mar
DUB
Dublin
SEA
Seattle - Tacoma Intl.
€696 Return, found 4 days ago
€696
Return
found 4 days ago
Select JetBlue Airways flight, departing Fri, 14 Mar from Dublin to Seattle - Tacoma Intl., returning Sun, 23 Mar, priced at €696 found 4 days ago
Delta
Fri, 15 Nov - Fri, 22 Nov
DUB
Dublin
SEA
Seattle - Tacoma Intl.
€699 Return, found 5 hours ago
€699
Return
found 5 hours ago
Select Delta flight, departing Fri, 15 Nov from Dublin to Seattle - Tacoma Intl., returning Fri, 22 Nov, priced at €699 found 5 hours ago
WestJet
Tue, 1 Oct - Tue, 15 Oct
DUB
Dublin
SEA
Seattle - Tacoma Intl.
€703 Return, found 1 day ago
€703
Return
found 1 day ago
Select WestJet flight, departing Tue, 1 Oct from Dublin to Seattle - Tacoma Intl., returning Tue, 15 Oct, priced at €703 found 1 day ago
United
Fri, 13 Dec - Tue, 17 Dec
DUB
Dublin
SEA
Seattle - Tacoma Intl.
€708 Return, found 3 days ago
€708
Return
found 3 days ago
Select United flight, departing Fri, 13 Dec from Dublin to Seattle - Tacoma Intl., returning Tue, 17 Dec, priced at €708 found 3 days ago
Air Canada
Fri, 1 Nov - Fri, 8 Nov
DUB
Dublin
SEA
Seattle - Tacoma Intl.
€713 Return, found 7 hours ago
€713
Return
found 7 hours ago
Select Air Canada flight, departing Fri, 1 Nov from Dublin to Seattle - Tacoma Intl., returning Fri, 8 Nov, priced at €713 found 7 hours ago
Lufthansa
Fri, 15 Nov - Fri, 22 Nov
DUB
Dublin
SEA
Seattle - Tacoma Intl.
€714 Return, found 5 hours ago
€714
Return
found 5 hours ago
Select Lufthansa flight, departing Fri, 15 Nov from Dublin to Seattle - Tacoma Intl., returning Fri, 22 Nov, priced at €714 found 5 hours ago

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.

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, €495 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 €495 and €714. If you were flying one way from Dublin (DUB), you could have gotten a great deal from just €324.
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 €495 and €714. 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.

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, 7 Nov - Wed, 13 Nov
DUB
Dublin
SEA
Seattle - Tacoma Intl.
€495 Return, found 11 hours ago
€495
Return
found 11 hours ago
Select Icelandair flight, departing Thu, 7 Nov from Dublin to Seattle - Tacoma Intl., returning Wed, 13 Nov, priced at €495 found 11 hours ago
*Available to Expedia members.