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Cheap Flights to Jefferson County from NT$2,498

View NT$2,498 flight on Sat, 2026/10/10Opens 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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How much is the cheapest flight to Jefferson County?

Prices were available within the past 7 days and start at NT$2,498 for one-way flights and NT$4,995 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Aug 5 - Sat, Aug 22
SFO
San Francisco
SEA
Seattle
NT$4,995 Roundtrip, found 6 hours ago
NT$4,995
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, Aug 5 from San Francisco to Seattle, returning Sat, Aug 22, priced at NT$4,995 found 6 hours ago
Alaska Airlines
Tue, Aug 11 - Mon, Aug 24
SFO
San Francisco
SEA
Seattle
NT$6,078 Roundtrip, found 4 days ago
NT$6,078
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, Aug 11 from San Francisco to Seattle, returning Mon, Aug 24, priced at NT$6,078 found 4 days ago
United
Wed, Aug 5 - Sat, Aug 22
SFO
San Francisco
SEA
Seattle
NT$7,542 Roundtrip, found 6 hours ago
NT$7,542
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Aug 5 from San Francisco to Seattle, returning Sat, Aug 22, priced at NT$7,542 found 6 hours ago
American Airlines
Tue, Aug 11 - Tue, Aug 18
SFO
San Francisco
SEA
Seattle
NT$8,168 Roundtrip, found 7 hours ago
NT$8,168
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Tue, Aug 11 from San Francisco to Seattle, returning Tue, Aug 18, priced at NT$8,168 found 7 hours ago
Alaska Airlines
Mon, Aug 3 - Fri, Aug 21
SFO
San Francisco
PAE
Seattle
NT$8,391 Roundtrip, found 4 days ago
NT$8,391
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Aug 3 from San Francisco to Seattle, returning Fri, Aug 21, priced at NT$8,391 found 4 days ago
United
Thu, Sep 10 - Fri, Sep 11
TPE
Taipei
SEA
Seattle
NT$17,399 Roundtrip, found 7 hours ago
NT$17,399
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Sep 10 from Taipei to Seattle, returning Fri, Sep 11, priced at NT$17,399 found 7 hours ago
China Airlines
Tue, Aug 25 - Mon, Aug 31
TPE
Taipei
SEA
Seattle
NT$25,526 Roundtrip, found 3 days ago
NT$25,526
Roundtrip
found 3 days ago
Select China Airlines flight, departing Tue, Aug 25 from Taipei to Seattle, returning Mon, Aug 31, priced at NT$25,526 found 3 days ago
Asiana Airlines
Mon, Dec 28 - Thu, Jan 7
TPE
Taipei
SEA
Seattle
NT$25,679 Roundtrip, found 2 days ago
NT$25,679
Roundtrip
found 2 days ago
Select Asiana Airlines flight, departing Mon, Dec 28 from Taipei to Seattle, returning Thu, Jan 7, priced at NT$25,679 found 2 days ago
Korean Air
Tue, Feb 2 - Sat, Feb 20
TPE
Taipei
SEA
Seattle
NT$25,679 Roundtrip, found 2 days ago
NT$25,679
Roundtrip
found 2 days ago
Select Korean Air flight, departing Tue, Feb 2 from Taipei to Seattle, returning Sat, Feb 20, priced at NT$25,679 found 2 days ago
STARLUX Airlines
Sat, Sep 26 - Thu, Oct 8
TPE
Taipei
SEA
Seattle
NT$26,290 Roundtrip, just found
NT$26,290
Roundtrip
just found
Select STARLUX Airlines flight, departing Sat, Sep 26 from Taipei to Seattle, returning Thu, Oct 8, priced at NT$26,290 just found

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.

United
Thu, Sep 10 - Fri, Sep 11
TPE
Taipei
SEA
Seattle
NT$17,399 Roundtrip, found 7 hours ago
NT$17,399
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Sep 10 from Taipei to Seattle, returning Fri, Sep 11, priced at NT$17,399 found 7 hours 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$4,995 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$4,995 and NT$26,290. If you were flying one way from San Francisco (SFO), you could have gotten a great deal from just NT$2,498.
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$4,995 and NT$26,290. 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.
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