Flight to Washington County

View S$139 flight on Tue, 21 Jul, 2026Opens in a new window

Popular airlines to Washington County

  • Alaska Airlines

  • Delta

  • United

  • American Airlines

  • Southwest Airlines

  • Frontier Airlines

  • Air Canada

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at S$139 for one-way flights and S$265 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 30 May - Wed, 3 Jun
SEA
Seattle
BOI
Boise
S$265 Return, found 4 days ago
S$265
Return
found 4 days ago
Select Delta flight, departing Sat, 30 May from Seattle to Boise, returning Wed, 3 Jun, priced at S$265 found 4 days ago
Delta
Sat, 30 May - Wed, 3 Jun
SEA
Seattle
BOI
Boise
S$278 Return, found 4 days ago
S$278
Return
found 4 days ago
Select Delta flight, departing Sat, 30 May from Seattle to Boise, returning Wed, 3 Jun, priced at S$278 found 4 days ago
Delta
Sat, 30 May - Wed, 3 Jun
SEA
Seattle
BOI
Boise
S$297 Return, found 4 days ago
S$297
Return
found 4 days ago
Select Delta flight, departing Sat, 30 May from Seattle to Boise, returning Wed, 3 Jun, priced at S$297 found 4 days ago
Delta
Sat, 30 May - Wed, 3 Jun
SEA
Seattle
BOI
Boise
S$304 Return, found 4 days ago
S$304
Return
found 4 days ago
Select Delta flight, departing Sat, 30 May from Seattle to Boise, returning Wed, 3 Jun, priced at S$304 found 4 days ago
Delta
Sat, 30 May - Wed, 3 Jun
SEA
Seattle
BOI
Boise
S$316 Return, found 4 days ago
S$316
Return
found 4 days ago
Select Delta flight, departing Sat, 30 May from Seattle to Boise, returning Wed, 3 Jun, priced at S$316 found 4 days ago
Delta
Sat, 30 May - Wed, 3 Jun
SEA
Seattle
BOI
Boise
S$329 Return, found 4 days ago
S$329
Return
found 4 days ago
Select Delta flight, departing Sat, 30 May from Seattle to Boise, returning Wed, 3 Jun, priced at S$329 found 4 days ago
United
Sat, 30 May - Wed, 3 Jun
SEA
Seattle
BOI
Boise
S$342 Return, found 4 days ago
S$342
Return
found 4 days ago
Select United flight, departing Sat, 30 May from Seattle to Boise, returning Wed, 3 Jun, priced at S$342 found 4 days ago
American Airlines
Wed, 27 May - Sun, 31 May
STS
Santa Rosa
BOI
Boise
S$691 Return, found 1 day ago
S$691
Return
found 1 day ago
Select American Airlines flight, departing Wed, 27 May from Santa Rosa to Boise, returning Sun, 31 May, priced at S$691 found 1 day ago
Lufthansa
Tue, 9 Feb - Sun, 28 Feb
SIN
Singapore
BOI
Boise
S$1,402 Return, found 3 days ago
S$1,402
Return
found 3 days ago
Select Lufthansa flight, departing Tue, 9 Feb from Singapore to Boise, returning Sun, 28 Feb, priced at S$1,402 found 3 days ago
STARLUX Airlines
Fri, 19 Jun - Sat, 4 Jul
SIN
Singapore
BOI
Boise
S$1,439 Return, found 2 days ago
S$1,439
Return
found 2 days ago
Select STARLUX Airlines flight, departing Fri, 19 Jun from Singapore to Boise, returning Sat, 4 Jul, priced at S$1,439 found 2 days 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.

Lufthansa
Tue, 9 Feb - Sun, 28 Feb
SIN
Singapore
BOI
Boise
S$1,402 Return, found 3 days ago
S$1,402
Return
found 3 days ago
Select Lufthansa flight, departing Tue, 9 Feb from Singapore to Boise, returning Sun, 28 Feb, priced at S$1,402 found 3 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$265 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$265 and S$1,439. If you were travelling one way out of Orlando (MCO), you could have gotten a low-cost fare from just S$139.
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$265 to S$1,439 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, American Airlines, United, Qatar Airways, STARLUX Airlines, Lufthansa
Roundtrip price
from S$265
Washington County Flights Information
*Available to Expedia members.