Flight Destinations in Jefferson County

View ฿14,110 flight on Mon, 22 Dec 2025Opens in a new window

Popular airlines to Jefferson County

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Air Canada

    Air Canada

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Cheap round-trip flights to Jefferson County

Prices were available within the past 7 days and start at ฿14,110 for one-way flights and ฿21,740 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hainan Airlines
Wed, 24 Dec - Tue, 13 Jan
BKK
Bangkok
SEA
Seattle
฿21,740 Return, found 5 days ago
฿21,740
Return
found 5 days ago
Select Hainan Airlines flight, departing Wed, 24 Dec from Bangkok to Seattle, returning Tue, 13 Jan, priced at ฿21,740 found 5 days ago
Philippine Airlines
Mon, 20 Apr - Thu, 30 Apr
BKK
Bangkok
SEA
Seattle
฿22,605 Return, just found
฿22,605
Return
just found
Select Philippine Airlines flight, departing Mon, 20 Apr from Bangkok to Seattle, returning Thu, 30 Apr, priced at ฿22,605 just found
STARLUX Airlines
Tue, 7 Apr - Wed, 29 Apr
CNX
Chiang Mai
SEA
Seattle
฿24,108 Return, found 13 hours ago
฿24,108
Return
found 13 hours ago
Select STARLUX Airlines flight, departing Tue, 7 Apr from Chiang Mai to Seattle, returning Wed, 29 Apr, priced at ฿24,108 found 13 hours ago
STARLUX Airlines
Mon, 20 Apr - Thu, 30 Apr
BKK
Bangkok
SEA
Seattle
฿24,108 Return, just found
฿24,108
Return
just found
Select STARLUX Airlines flight, departing Mon, 20 Apr from Bangkok to Seattle, returning Thu, 30 Apr, priced at ฿24,108 just found
United
Sat, 16 May - Wed, 30 Sept
BKK
Bangkok
SEA
Seattle
฿24,875 Return, found 9 hours ago
฿24,875
Return
found 9 hours ago
Select United flight, departing Sat, 16 May from Bangkok to Seattle, returning Wed, 30 Sept, priced at ฿24,875 found 9 hours ago
All Nippon Airways
Tue, 2 Jun - Tue, 9 Jun
BKK
Bangkok
SEA
Seattle
฿25,640 Return, found 21 hours ago
฿25,640
Return
found 21 hours ago
Select All Nippon Airways flight, departing Tue, 2 Jun from Bangkok to Seattle, returning Tue, 9 Jun, priced at ฿25,640 found 21 hours ago
Korean Air
Mon, 20 Apr - Thu, 30 Apr
BKK
Bangkok
SEA
Seattle
฿25,820 Return, just found
฿25,820
Return
just found
Select Korean Air flight, departing Mon, 20 Apr from Bangkok to Seattle, returning Thu, 30 Apr, priced at ฿25,820 just found
EVA Airways
Sat, 20 Dec - Tue, 20 Jan
BKK
Bangkok
SEA
Seattle
฿25,885 Return, just found
฿25,885
Return
just found
Select EVA Airways flight, departing Sat, 20 Dec from Bangkok to Seattle, returning Tue, 20 Jan, priced at ฿25,885 just found
Asiana Airlines
Fri, 3 Apr - Wed, 15 Apr
BKK
Bangkok
SEA
Seattle
฿26,005 Return, found 1 hour ago
฿26,005
Return
found 1 hour ago
Select Asiana Airlines flight, departing Fri, 3 Apr from Bangkok to Seattle, returning Wed, 15 Apr, priced at ฿26,005 found 1 hour ago
China Airlines
Mon, 13 Apr - Mon, 20 Apr
BKK
Bangkok
SEA
Seattle
฿26,105 Return, found 2 hours ago
฿26,105
Return
found 2 hours ago
Select China Airlines flight, departing Mon, 13 Apr from Bangkok to Seattle, returning Mon, 20 Apr, priced at ฿26,105 found 2 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, ฿21,740 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 ฿21,740 and ฿26,105. If you were flying one way from Bangkok (BKK), you could have gotten a great deal from just ฿14,110.
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 ฿21,740 and ฿26,105. 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.

Hainan Airlines
Wed, 24 Dec - Tue, 13 Jan
BKK
Bangkok
SEA
Seattle
฿21,740 Return, found 5 days ago
฿21,740
Return
found 5 days ago
Select Hainan Airlines flight, departing Wed, 24 Dec from Bangkok to Seattle, returning Tue, 13 Jan, priced at ฿21,740 found 5 days ago
*Available to Expedia members.