Cheap Flights to Jefferson County from NT$9,496

View NT$9,496 flight on Tue, 2026/9/29Opens in a new window

Popular airlines to Jefferson County

  • Alaska Airlines

  • Delta

  • American Airlines

  • United

  • Southwest Airlines

  • Frontier Airlines

  • JetBlue Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 45% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Jefferson County?

Prices were available within the past 7 days and start at NT$9,496 for one-way flights and NT$15,190 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Wed, Sep 23 - Thu, Oct 1
TPE
Taipei
SEA
Seattle
NT$15,190 Roundtrip, found 2 days ago
NT$15,190
Roundtrip
found 2 days ago
Select Philippine Airlines flight, departing Wed, Sep 23 from Taipei to Seattle, returning Thu, Oct 1, priced at NT$15,190 found 2 days ago
Philippine Airlines
Tue, Sep 8 - Fri, Sep 11
TPE
Taipei
SEA
Seattle
NT$15,197 Roundtrip, just found
NT$15,197
Roundtrip
just found
Select Philippine Airlines flight, departing Tue, Sep 8 from Taipei to Seattle, returning Fri, Sep 11, priced at NT$15,197 just found
Cathay Pacific
Fri, Sep 25 - Thu, Oct 8
TPE
Taipei
SEA
Seattle
NT$18,490 Roundtrip, found 5 days ago
NT$18,490
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Fri, Sep 25 from Taipei to Seattle, returning Thu, Oct 8, priced at NT$18,490 found 5 days ago
Cathay Pacific
Thu, Dec 24 - Mon, Feb 1
TPE
Taipei
SEA
Seattle
NT$18,519 Roundtrip, found 17 hours ago
NT$18,519
Roundtrip
found 17 hours ago
Select Cathay Pacific flight, departing Thu, Dec 24 from Taipei to Seattle, returning Mon, Feb 1, priced at NT$18,519 found 17 hours ago
United
Thu, May 14 - Wed, Jul 29
TPE
Taipei
SEA
Seattle
NT$19,888 Roundtrip, found 1 day ago
NT$19,888
Roundtrip
found 1 day ago
Select United flight, departing Thu, May 14 from Taipei to Seattle, returning Wed, Jul 29, priced at NT$19,888 found 1 day ago
Delta
Mon, May 18 - Tue, May 26
TPE
Taipei
SEA
Seattle
NT$20,667 Roundtrip, just found
NT$20,667
Roundtrip
just found
Select Delta flight, departing Mon, May 18 from Taipei to Seattle, returning Tue, May 26, priced at NT$20,667 just found
Korean Air
Thu, Jan 21 - Mon, Feb 1
TPE
Taipei
SEA
Seattle
NT$22,829 Roundtrip, found 17 hours ago
NT$22,829
Roundtrip
found 17 hours ago
Select Korean Air flight, departing Thu, Jan 21 from Taipei to Seattle, returning Mon, Feb 1, priced at NT$22,829 found 17 hours ago
China Airlines
Sun, Sep 6 - Sun, Sep 13
TPE
Taipei
SEA
Seattle
NT$23,002 Roundtrip, just found
NT$23,002
Roundtrip
just found
Select China Airlines flight, departing Sun, Sep 6 from Taipei to Seattle, returning Sun, Sep 13, priced at NT$23,002 just found
All Nippon Airways
Wed, Nov 11 - Mon, Nov 23
TSA
Taipei
SEA
Seattle
NT$23,481 Roundtrip, found 6 days ago
NT$23,481
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Wed, Nov 11 from Taipei to Seattle, returning Mon, Nov 23, priced at NT$23,481 found 6 days ago
EVA Airways
Tue, May 19 - Wed, May 27
TPE
Taipei
SEA
Seattle
NT$24,151 Roundtrip, found 15 hours ago
NT$24,151
Roundtrip
found 15 hours ago
Select EVA Airways flight, departing Tue, May 19 from Taipei to Seattle, returning Wed, May 27, priced at NT$24,151 found 15 hours ago

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.

Philippine Airlines
Wed, Sep 23 - Thu, Oct 1
TPE
Taipei
SEA
Seattle
NT$15,190 Roundtrip, found 2 days ago
NT$15,190
Roundtrip
found 2 days ago
Select Philippine Airlines flight, departing Wed, Sep 23 from Taipei to Seattle, returning Thu, Oct 1, priced at NT$15,190 found 2 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$15,190 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$15,190 and NT$24,151. If you were flying one way from Taipei (TPE), you could have gotten a great deal from just NT$9,496.
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$15,190 and NT$24,151. 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.

Explore a world of travel with Expedia

*Available to Expedia members.