Cheap flights to Washington County

View €102 flight on Tue, 9 Jun 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 €102 for one-way flights and €152 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 30 May - Sat, 6 Jun
SEA
Seattle
BOI
Boise
€152 Return, found 6 days ago
€152
Return
found 6 days ago
Select Delta flight, departing Sat, 30 May from Seattle to Boise, returning Sat, 6 Jun, priced at €152 found 6 days ago
Delta
Fri, 29 May - Sun, 7 Jun
SEA
Seattle
BOI
Boise
€169 Return, found 6 days ago
€169
Return
found 6 days ago
Select Delta flight, departing Fri, 29 May from Seattle to Boise, returning Sun, 7 Jun, priced at €169 found 6 days ago
United
Sat, 30 May - Mon, 1 Jun
SFO
San Francisco
BOI
Boise
€220 Return, found 1 day ago
€220
Return
found 1 day ago
Select United flight, departing Sat, 30 May from San Francisco to Boise, returning Mon, 1 Jun, priced at €220 found 1 day ago
Delta
Sun, 24 May - Mon, 1 Jun
LGA
New York
BOI
Boise
€227 Return, found 22 hours ago
€227
Return
found 22 hours ago
Select Delta flight, departing Sun, 24 May from New York to Boise, returning Mon, 1 Jun, priced at €227 found 22 hours ago
United
Sat, 30 May - Sat, 6 Jun
SEA
Seattle
BOI
Boise
€228 Return, found 6 days ago
€228
Return
found 6 days ago
Select United flight, departing Sat, 30 May from Seattle to Boise, returning Sat, 6 Jun, priced at €228 found 6 days ago
Delta
Sun, 24 May - Mon, 1 Jun
JFK
New York
BOI
Boise
€270 Return, found 22 hours ago
€270
Return
found 22 hours ago
Select Delta flight, departing Sun, 24 May from New York to Boise, returning Mon, 1 Jun, priced at €270 found 22 hours ago
Delta
Thu, 28 May - Wed, 3 Jun
EWR
New York
BOI
Boise
€293 Return, found 4 days ago
€293
Return
found 4 days ago
Select Delta flight, departing Thu, 28 May from New York to Boise, returning Wed, 3 Jun, priced at €293 found 4 days ago
American Airlines
Mon, 1 Jun - Tue, 9 Jun
MCO
Orlando
BOI
Boise
€335 Return, found 1 day ago
€335
Return
found 1 day ago
Select American Airlines flight, departing Mon, 1 Jun from Orlando to Boise, returning Tue, 9 Jun, priced at €335 found 1 day ago
Air Canada
Mon, 25 May - Fri, 29 May
YYC
Calgary
BOI
Boise
€645 Return, found 1 day ago
€645
Return
found 1 day ago
Select Air Canada flight, departing Mon, 25 May from Calgary to Boise, returning Fri, 29 May, priced at €645 found 1 day ago
Finnair
Fri, 15 May - Tue, 19 May
DUB
Dublin
BOI
Boise
€851 Return, found 1 day ago
€851
Return
found 1 day ago
Select Finnair flight, departing Fri, 15 May from Dublin to Boise, returning Tue, 19 May, priced at €851 found 1 day 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.

Finnair
Fri, 15 May - Tue, 19 May
DUB
Dublin
BOI
Boise
€851 Return, found 1 day ago
€851
Return
found 1 day ago
Select Finnair flight, departing Fri, 15 May from Dublin to Boise, returning Tue, 19 May, priced at €851 found 1 day 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, €152 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 €152 and €851. If you were travelling one way out of Seattle (SEA), you could have gotten a low-cost fare from just €102.
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.
How much is a plane ticket to Washington County?
Ticket prices ranged anywhere from €152 to €851 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

About Washington County

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.
About Washington County
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