Flight to Jefferson County

View S$76 flight on Wed, 11 Mar, 2026Opens 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

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Jefferson County

Prices were available within the past 7 days and start at S$76 for one-way flights and S$151 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 11 Mar - Sat, 14 Mar
SFO
San Francisco
SEA
Seattle
S$151 Return, found 1 day ago
S$151
Return
found 1 day ago
Select Delta flight, departing Wed, 11 Mar from San Francisco to Seattle, returning Sat, 14 Mar, priced at S$151 found 1 day ago
Delta
Thu, 22 Jan - Sun, 25 Jan
SFO
San Francisco
SEA
Seattle
S$152 Return, found 6 days ago
S$152
Return
found 6 days ago
Select Delta flight, departing Thu, 22 Jan from San Francisco to Seattle, returning Sun, 25 Jan, priced at S$152 found 6 days ago
Delta
Thu, 22 Jan - Sun, 25 Jan
SFO
San Francisco
SEA
Seattle
S$164 Return, found 6 days ago
S$164
Return
found 6 days ago
Select Delta flight, departing Thu, 22 Jan from San Francisco to Seattle, returning Sun, 25 Jan, priced at S$164 found 6 days ago
Delta
Wed, 11 Mar - Sat, 14 Mar
SFO
San Francisco
SEA
Seattle
S$176 Return, found 1 day ago
S$176
Return
found 1 day ago
Select Delta flight, departing Wed, 11 Mar from San Francisco to Seattle, returning Sat, 14 Mar, priced at S$176 found 1 day ago
Delta
Thu, 22 Jan - Mon, 26 Jan
SFO
San Francisco
SEA
Seattle
S$189 Return, found 2 days ago
S$189
Return
found 2 days ago
Select Delta flight, departing Thu, 22 Jan from San Francisco to Seattle, returning Mon, 26 Jan, priced at S$189 found 2 days ago
United
Wed, 11 Mar - Sat, 14 Mar
SFO
San Francisco
SEA
Seattle
S$197 Return, found 1 day ago
S$197
Return
found 1 day ago
Select United flight, departing Wed, 11 Mar from San Francisco to Seattle, returning Sat, 14 Mar, priced at S$197 found 1 day ago
United
Sun, 15 Feb - Sun, 22 Feb
SFO
San Francisco
SEA
Seattle
S$197 Return, found 9 hours ago
S$197
Return
found 9 hours ago
Select United flight, departing Sun, 15 Feb from San Francisco to Seattle, returning Sun, 22 Feb, priced at S$197 found 9 hours ago
Delta
Thu, 22 Jan - Mon, 26 Jan
SFO
San Francisco
SEA
Seattle
S$201 Return, found 2 days ago
S$201
Return
found 2 days ago
Select Delta flight, departing Thu, 22 Jan from San Francisco to Seattle, returning Mon, 26 Jan, priced at S$201 found 2 days ago
American Airlines
Wed, 11 Mar - Sat, 14 Mar
SFO
San Francisco
SEA
Seattle
S$223 Return, found 1 day ago
S$223
Return
found 1 day ago
Select American Airlines flight, departing Wed, 11 Mar from San Francisco to Seattle, returning Sat, 14 Mar, priced at S$223 found 1 day ago
Hawaiian Airlines
Thu, 12 Feb - Sun, 15 Feb
SAN
San Diego
SEA
Seattle
S$1,877 Return, found 1 day ago
S$1,877
Return
found 1 day ago
Select Hawaiian Airlines flight, departing Thu, 12 Feb from San Diego to Seattle, returning Sun, 15 Feb, priced at S$1,877 found 1 day 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.

Hainan Airlines
Wed, 11 Mar - Thu, 26 Mar
SIN
Singapore
SEA
Seattle
S$907 Return, found 11 hours ago
S$907
Return
found 11 hours ago
Select Hainan Airlines flight, departing Wed, 11 Mar from Singapore to Seattle, returning Thu, 26 Mar, priced at S$907 found 11 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, S$151 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$151 and S$1,877. If you were flying one way from San Francisco (SFO), you could have gotten a great deal from just S$76.
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$151 and S$1,877. 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, Hawaiian Airlines
Roundtrip price
from S$151
Jefferson County Flights Information

Explore a world of travel with Expedia

*Available to Expedia members.