Cheap Flights to Jefferson County from NT$12,045

View NT$12,045 flight on Thu, 2026/3/19Opens in a new window

Popular airlines to Jefferson County

  • Alaska Airlines

    Alaska Airlines

  • American Airlines

    American Airlines

  • United

    United

  • Delta

    Delta

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Air Canada

    Air Canada

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How much is the cheapest flight to Jefferson County?

Prices were available within the past 7 days and start at NT$12,045 for one-way flights and NT$18,945 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Thu, Nov 5 - Mon, Nov 9
TPE
Taipei
SEA
Seattle
NT$18,945 Roundtrip, found 3 days ago
NT$18,945
Roundtrip
found 3 days ago
Select Cathay Pacific flight, departing Thu, Nov 5 from Taipei to Seattle, returning Mon, Nov 9, priced at NT$18,945 found 3 days ago
Cathay Pacific
Wed, May 13 - Tue, May 19
TPE
Taipei
SEA
Seattle
NT$18,947 Roundtrip, just found
NT$18,947
Roundtrip
just found
Select Cathay Pacific flight, departing Wed, May 13 from Taipei to Seattle, returning Tue, May 19, priced at NT$18,947 just found
Cathay Pacific
Thu, Sep 10 - Wed, Sep 23
TPE
Taipei
SEA
Seattle
NT$18,955 Roundtrip, found 14 hours ago
NT$18,955
Roundtrip
found 14 hours ago
Select Cathay Pacific flight, departing Thu, Sep 10 from Taipei to Seattle, returning Wed, Sep 23, priced at NT$18,955 found 14 hours ago
Cathay Pacific
Tue, Mar 3 - Wed, May 13
TPE
Taipei
SEA
Seattle
NT$19,124 Roundtrip, found 2 hours ago
NT$19,124
Roundtrip
found 2 hours ago
Select Cathay Pacific flight, departing Tue, Mar 3 from Taipei to Seattle, returning Wed, May 13, priced at NT$19,124 found 2 hours ago
Delta
Thu, Mar 19 - Tue, Mar 24
TPE
Taipei
SEA
Seattle
NT$19,710 Roundtrip, just found
NT$19,710
Roundtrip
just found
Select Delta flight, departing Thu, Mar 19 from Taipei to Seattle, returning Tue, Mar 24, priced at NT$19,710 just found
United
Mon, Mar 30 - Mon, Mar 30
TPE
Taipei
SEA
Seattle
NT$19,710 Roundtrip, found 3 hours ago
NT$19,710
Roundtrip
found 3 hours ago
Select United flight, departing Mon, Mar 30 from Taipei to Seattle, returning Mon, Mar 30, priced at NT$19,710 found 3 hours ago
Philippine Airlines
Thu, Aug 27 - Sun, Sep 13
TPE
Taipei
SEA
Seattle
NT$22,276 Roundtrip, found 3 days ago
NT$22,276
Roundtrip
found 3 days ago
Select Philippine Airlines flight, departing Thu, Aug 27 from Taipei to Seattle, returning Sun, Sep 13, priced at NT$22,276 found 3 days ago
Korean Air
Thu, Oct 15 - Fri, Oct 30
TPE
Taipei
SEA
Seattle
NT$23,164 Roundtrip, just found
NT$23,164
Roundtrip
just found
Select Korean Air flight, departing Thu, Oct 15 from Taipei to Seattle, returning Fri, Oct 30, priced at NT$23,164 just found
All Nippon Airways
Thu, Apr 23 - Tue, May 26
TSA
Taipei
SEA
Seattle
NT$23,322 Roundtrip, found 15 hours ago
NT$23,322
Roundtrip
found 15 hours ago
Select All Nippon Airways flight, departing Thu, Apr 23 from Taipei to Seattle, returning Tue, May 26, priced at NT$23,322 found 15 hours ago
Hainan Airlines
Mon, May 11 - Sat, May 23
TPE
Taipei
SEA
Seattle
NT$23,543 Roundtrip, found 4 days ago
NT$23,543
Roundtrip
found 4 days ago
Select Hainan Airlines flight, departing Mon, May 11 from Taipei to Seattle, returning Sat, May 23, priced at NT$23,543 found 4 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, NT$18,945 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 NT$18,945 and NT$23,543. If you were flying one way from Taipei (TPE), you could have gotten a great deal from just NT$12,045.
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.
When is the cheapest time to fly to Jefferson County?
Fly out on a Tuesday to boost your odds of securing the cheapest flight to Jefferson County. Mondays are usually the second most affordable day to depart. Saturday is generally the most expensive day to fly anywhere.
How much is a plane ticket to Jefferson County?
In the last seven days, plane tickets to Jefferson County ranged between NT$18,945 and NT$23,543. 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 55ºF and 65ºF.
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, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Thu, Nov 5 - Mon, Nov 9
TPE
Taipei
SEA
Seattle
NT$18,945 Roundtrip, found 3 days ago
NT$18,945
Roundtrip
found 3 days ago
Select Cathay Pacific flight, departing Thu, Nov 5 from Taipei to Seattle, returning Mon, Nov 9, priced at NT$18,945 found 3 days ago
*Available to Expedia members.