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Flight to Jefferson County

View S$110 flight on Mon, 5 Oct, 2026Opens 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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Cheap round-trip flights to Jefferson County

Prices were available within the past 7 days and start at S$110 for one-way flights and S$204 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 24 Sept - Mon, 28 Sept
SFO
San Francisco
SEA
Seattle
S$204 Return, found 17 hours ago
S$204
Return
found 17 hours ago
Select Alaska Airlines flight, departing Thu, 24 Sept from San Francisco to Seattle, returning Mon, 28 Sept, priced at S$204 found 17 hours ago
Delta
Wed, 7 Oct - Wed, 7 Oct
SFO
San Francisco
SEA
Seattle
S$212 Return, found 2 days ago
S$212
Return
found 2 days ago
Select Delta flight, departing Wed, 7 Oct from San Francisco to Seattle, returning Wed, 7 Oct, priced at S$212 found 2 days ago
Alaska Airlines
Tue, 6 Oct - Wed, 7 Oct
SFO
San Francisco
PAE
Seattle
S$219 Return, found 2 days ago
S$219
Return
found 2 days ago
Select Alaska Airlines flight, departing Tue, 6 Oct from San Francisco to Seattle, returning Wed, 7 Oct, priced at S$219 found 2 days ago
United
Thu, 20 Aug - Mon, 24 Aug
SFO
San Francisco
SEA
Seattle
S$307 Return, found 15 hours ago
S$307
Return
found 15 hours ago
Select United flight, departing Thu, 20 Aug from San Francisco to Seattle, returning Mon, 24 Aug, priced at S$307 found 15 hours ago
American Airlines
Sat, 26 Sept - Tue, 29 Sept
SFO
San Francisco
SEA
Seattle
S$333 Return, found 17 hours ago
S$333
Return
found 17 hours ago
Select American Airlines flight, departing Sat, 26 Sept from San Francisco to Seattle, returning Tue, 29 Sept, priced at S$333 found 17 hours ago
Air Canada
Tue, 14 Jul - Tue, 21 Jul
SIN
Singapore
SEA
Seattle
S$1,000 Return, found 2 days ago
S$1,000
Return
found 2 days ago
Select Air Canada flight, departing Tue, 14 Jul from Singapore to Seattle, returning Tue, 21 Jul, priced at S$1,000 found 2 days ago
Korean Air
Tue, 15 Sept - Tue, 22 Sept
SIN
Singapore
SEA
Seattle
S$1,058 Return, found 3 days ago
S$1,058
Return
found 3 days ago
Select Korean Air flight, departing Tue, 15 Sept from Singapore to Seattle, returning Tue, 22 Sept, priced at S$1,058 found 3 days ago
STARLUX Airlines
Thu, 10 Sept - Thu, 17 Sept
SIN
Singapore
SEA
Seattle
S$1,132 Return, found 17 hours ago
S$1,132
Return
found 17 hours ago
Select STARLUX Airlines flight, departing Thu, 10 Sept from Singapore to Seattle, returning Thu, 17 Sept, priced at S$1,132 found 17 hours ago
China Airlines
Tue, 15 Sept - Tue, 22 Sept
SIN
Singapore
SEA
Seattle
S$1,237 Return, found 3 days ago
S$1,237
Return
found 3 days ago
Select China Airlines flight, departing Tue, 15 Sept from Singapore to Seattle, returning Tue, 22 Sept, priced at S$1,237 found 3 days ago
All Nippon Airways
Thu, 3 Sept - Mon, 14 Sept
SIN
Singapore
SEA
Seattle
S$1,240 Return, found 19 hours ago
S$1,240
Return
found 19 hours ago
Select All Nippon Airways flight, departing Thu, 3 Sept from Singapore to Seattle, returning Mon, 14 Sept, priced at S$1,240 found 19 hours ago

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.

Air Canada
Tue, 14 Jul - Tue, 21 Jul
SIN
Singapore
SEA
Seattle
S$1,000 Return, found 2 days ago
S$1,000
Return
found 2 days ago
Select Air Canada flight, departing Tue, 14 Jul from Singapore to Seattle, returning Tue, 21 Jul, priced at S$1,000 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, S$204 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 S$204 and S$1,240. If you were flying one way from San Francisco (SFO), you could have gotten a great deal from just S$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.
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 S$204 and S$1,240. 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.

Book with confidence

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.

Travel information

Jefferson County Flights Information

Airlines serving
Delta, United, American Airlines, Alaska Airlines, Air Canada, Singapore Airlines, Hainan Airlines, STARLUX Airlines, All Nippon Airways, Lufthansa, Korean Air, China Airlines
Roundtrip price
from S$204
Jefferson County Flights Information
*Available to Expedia members.