Flight to Washington County

View S$127 flight on Mon, 23 Feb, 2026Opens in a new window

Popular airlines to Washington County

  • Scoot

  • AirAsia

  • Jetstar Asia

  • Thai AirAsia

  • Indonesia AirAsia

  • Singapore Airlines

  • China Eastern Airlines

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at S$127 for one-way flights and S$188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 23 Feb - Sat, 28 Feb
SEA
Seattle
BOI
Boise
S$188 Return, found 1 day ago
S$188
Return
found 1 day ago
Select Delta flight, departing Mon, 23 Feb from Seattle to Boise, returning Sat, 28 Feb, priced at S$188 found 1 day ago
United
Mon, 23 Feb - Sat, 28 Feb
SEA
Seattle
BOI
Boise
S$273 Return, found 1 day ago
S$273
Return
found 1 day ago
Select United flight, departing Mon, 23 Feb from Seattle to Boise, returning Sat, 28 Feb, priced at S$273 found 1 day ago
United
Mon, 23 Feb - Sat, 28 Feb
SEA
Seattle
BOI
Boise
S$320 Return, found 1 day ago
S$320
Return
found 1 day ago
Select United flight, departing Mon, 23 Feb from Seattle to Boise, returning Sat, 28 Feb, priced at S$320 found 1 day ago
Delta
Tue, 10 Mar - Tue, 17 Mar
DFW
Dallas
BOI
Boise
S$466 Return, found 5 days ago
S$466
Return
found 5 days ago
Select Delta flight, departing Tue, 10 Mar from Dallas to Boise, returning Tue, 17 Mar, priced at S$466 found 5 days ago
American Airlines
Tue, 10 Mar - Tue, 17 Mar
DFW
Dallas
BOI
Boise
S$628 Return, found 5 days ago
S$628
Return
found 5 days ago
Select American Airlines flight, departing Tue, 10 Mar from Dallas to Boise, returning Tue, 17 Mar, priced at S$628 found 5 days ago
China Airlines
Tue, 24 Feb - Tue, 24 Mar
SIN
Singapore
BOI
Boise
S$1,175 Return, found 5 days ago
S$1,175
Return
found 5 days ago
Select China Airlines flight, departing Tue, 24 Feb from Singapore to Boise, returning Tue, 24 Mar, priced at S$1,175 found 5 days ago
STARLUX Airlines
Mon, 16 Mar - Mon, 30 Mar
SIN
Singapore
BOI
Boise
S$1,260 Return, found 8 hours ago
S$1,260
Return
found 8 hours ago
Select STARLUX Airlines flight, departing Mon, 16 Mar from Singapore to Boise, returning Mon, 30 Mar, priced at S$1,260 found 8 hours ago
Lufthansa
Tue, 24 Feb - Tue, 14 Apr
SIN
Singapore
BOI
Boise
S$1,363 Return, found 5 days ago
S$1,363
Return
found 5 days ago
Select Lufthansa flight, departing Tue, 24 Feb from Singapore to Boise, returning Tue, 14 Apr, priced at S$1,363 found 5 days ago
Hawaiian Airlines
Wed, 18 Feb - Sun, 8 Mar
SIN
Singapore
BOI
Boise
S$1,425 Return, found 23 hours ago
S$1,425
Return
found 23 hours ago
Select Hawaiian Airlines flight, departing Wed, 18 Feb from Singapore to Boise, returning Sun, 8 Mar, priced at S$1,425 found 23 hours ago
Qatar Airways
Mon, 16 Mar - Tue, 31 Mar
SIN
Singapore
BOI
Boise
S$1,475 Return, found 8 hours ago
S$1,475
Return
found 8 hours ago
Select Qatar Airways flight, departing Mon, 16 Mar from Singapore to Boise, returning Tue, 31 Mar, priced at S$1,475 found 8 hours ago
Expedia offers flights to Washington County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Washington County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Washington County Flights Information

Airlines serving
Delta, United, American Airlines, China Airlines, Lufthansa, STARLUX Airlines, Qatar Airways, Swiss International Air Lines, Hawaiian Airlines
Roundtrip price
from S$188

Frequently asked questions

How do I find cheap flights to Washington County that have flexible change policies?
When it comes to flying these days, flexibility is a must. That's why we've added a "No change fee" filter to help you find cheap and flexible tickets to Washington County. It's on the left of your screen directly below the "Flexible change policies" heading.
Which airlines fly to Washington County?
You can choose from a selection of airlines that touch down in or near Washington County. Some of your top options are:

  • Alaska Airlines - 754 flights to or near Washington County each month, including 754 flights to Boise Airport (BOI) per month.
  • Delta Air Lines - 489 flights to or near Washington County each month, including 489 flights to Boise Airport (BOI) per month.
  • United Airlines - 303 flights to or near Washington County each month, including 303 flights to Boise Airport (BOI) per month.

How can I find cheap tickets to Washington County?
To nab a terrific deal to Washington County, book in advance. Also think about using Expedia's handy "flexible dates" link above your search results. This will show you the cheapest prices for nearby days. In the last seven days, S$188 was the lowest price for a flight to Washington County.
How much is a flight to Washington County?
The price of a round-trip flight to Washington County in the last seven days varied between S$188 and S$1,475. If you were travelling one way out of Seattle (SEA), you could have gotten a low-cost fare from just S$127.
What are the most popular airports to fly into in Washington County?
Book your flight to Boise Airport (BOI) and sample the best that Washington County has to offer. As the region's primary entry point, around 1,994 flights land here each month.
When is the cheapest time to fly to Washington County?
Fly out on a Tuesday to raise your chances of scoring the cheapest airfare to Washington County. Mondays are usually the second most affordable day to take off. Saturday is typically the most expensive day to fly anywhere.
How much is a plane ticket to Washington County?
Ticket prices ranged anywhere from S$188 to S$1,475 in the last seven days. When you're ready to book, we're here to help you grab a cheap flight to Washington County.
What is the best time to go to Washington County?
A fantastic time to head for Washington County, as well as the exciting city of Weiser, is during the busy months of March, June and July. Summer here starts June 20, and you can look forward to temperatures of between 16ºC and 29ºC if you go then. This warmer weather is ideal for wandering around the city sights.
What months are the cheapest to book a flight to Washington County?
The best month to purchase low-cost fares to Washington County is February. It's worth noting that in the U.S, the most expensive time to purchase a ticket is during the busy month of December.

Trending flights to Washington 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.

China Airlines
Tue, 24 Feb - Tue, 24 Mar
SIN
Singapore
BOI
Boise
S$1,175 Return, found 5 days ago
S$1,175
Return
found 5 days ago
Select China Airlines flight, departing Tue, 24 Feb from Singapore to Boise, returning Tue, 24 Mar, priced at S$1,175 found 5 days ago
*Available to Expedia members.