Flight to Washington County

View S$103 flight on Tue, 21 Apr, 2026Opens in a new window

Popular airlines to Washington County

  • Alaska Airlines

  • Delta

  • United

  • American Airlines

  • Southwest Airlines

  • Air Canada

  • Air France

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at S$103 for one-way flights and S$227 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 16 Apr - Sun, 19 Apr
SEA
Seattle
BOI
Boise
S$227 Return, found 2 days ago
S$227
Return
found 2 days ago
Select Delta flight, departing Thu, 16 Apr from Seattle to Boise, returning Sun, 19 Apr, priced at S$227 found 2 days ago
United
Thu, 16 Apr - Sun, 19 Apr
SEA
Seattle
BOI
Boise
S$285 Return, found 2 days ago
S$285
Return
found 2 days ago
Select United flight, departing Thu, 16 Apr from Seattle to Boise, returning Sun, 19 Apr, priced at S$285 found 2 days ago
Delta
Sat, 16 May - Mon, 25 May
SEA
Seattle
BOI
Boise
S$298 Return, found 2 days ago
S$298
Return
found 2 days ago
Select Delta flight, departing Sat, 16 May from Seattle to Boise, returning Mon, 25 May, priced at S$298 found 2 days ago
United
Thu, 16 Apr - Sun, 19 Apr
SEA
Seattle
BOI
Boise
S$337 Return, found 2 days ago
S$337
Return
found 2 days ago
Select United flight, departing Thu, 16 Apr from Seattle to Boise, returning Sun, 19 Apr, priced at S$337 found 2 days ago
United
Thu, 11 Jun - Sun, 14 Jun
SEA
Seattle
BOI
Boise
S$508 Return, found 7 hours ago
S$508
Return
found 7 hours ago
Select United flight, departing Thu, 11 Jun from Seattle to Boise, returning Sun, 14 Jun, priced at S$508 found 7 hours ago
American Airlines
Sat, 16 May - Mon, 25 May
SEA
Seattle
BOI
Boise
S$843 Return, found 2 days ago
S$843
Return
found 2 days ago
Select American Airlines flight, departing Sat, 16 May from Seattle to Boise, returning Mon, 25 May, priced at S$843 found 2 days ago
STARLUX Airlines
Tue, 14 Jul - Tue, 4 Aug
SIN
Singapore
BOI
Boise
S$1,287 Return, found 6 days ago
S$1,287
Return
found 6 days ago
Select STARLUX Airlines flight, departing Tue, 14 Jul from Singapore to Boise, returning Tue, 4 Aug, priced at S$1,287 found 6 days ago
STARLUX Airlines
Mon, 25 May - Sun, 7 Jun
SIN
Singapore
BOI
Boise
S$1,404 Return, found 4 days ago
S$1,404
Return
found 4 days ago
Select STARLUX Airlines flight, departing Mon, 25 May from Singapore to Boise, returning Sun, 7 Jun, priced at S$1,404 found 4 days ago
Qatar Airways
Sun, 19 Apr - Sun, 3 May
SIN
Singapore
BOI
Boise
S$1,536 Return, found 4 days ago
S$1,536
Return
found 4 days ago
Select Qatar Airways flight, departing Sun, 19 Apr from Singapore to Boise, returning Sun, 3 May, priced at S$1,536 found 4 days ago
Korean Air
Tue, 21 Apr - Tue, 28 Apr
SIN
Singapore
BOI
Boise
S$1,978 Return, found 2 hours ago
S$1,978
Return
found 2 hours ago
Select Korean Air flight, departing Tue, 21 Apr from Singapore to Boise, returning Tue, 28 Apr, priced at S$1,978 found 2 hours ago

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.

STARLUX Airlines
Tue, 14 Jul - Tue, 4 Aug
SIN
Singapore
BOI
Boise
S$1,287 Return, found 6 days ago
S$1,287
Return
found 6 days ago
Select STARLUX Airlines flight, departing Tue, 14 Jul from Singapore to Boise, returning Tue, 4 Aug, priced at S$1,287 found 6 days ago

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$227 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$227 and S$1,978. If you were travelling one way out of Seattle (SEA), you could have gotten a low-cost fare from just S$103.
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$227 to S$1,978 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.

Book with confidence

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.

Travel information

Washington County Flights Information

Airlines serving
Delta, United, American Airlines, Lufthansa, STARLUX Airlines, Qatar Airways, Air Canada, Korean Air
Roundtrip price
from S$227
Washington County Flights Information

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