Cheap flights to Washington County

View €139 flight on Wed, 1 Apr 2026Opens in a new window

Popular airlines to Washington County

  • Aer Lingus

  • Lufthansa

  • British Airways

  • Turkish Airlines

  • American Airlines

  • Air Serbia

  • Swiss International Air Lines

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at €139 for one-way flights and €253 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 12 Mar - Mon, 16 Mar
SLC
Salt Lake City
BOI
Boise
€253 Return, found 21 hours ago
€253
Return
found 21 hours ago
Select Delta flight, departing Thu, 12 Mar from Salt Lake City to Boise, returning Mon, 16 Mar, priced at €253 found 21 hours ago
United
Wed, 1 Apr - Sun, 5 Apr
DTW
Detroit
BOI
Boise
€446 Return, found 1 day ago
€446
Return
found 1 day ago
Select United flight, departing Wed, 1 Apr from Detroit to Boise, returning Sun, 5 Apr, priced at €446 found 1 day ago
American Airlines
Wed, 1 Apr - Sun, 5 Apr
DTW
Detroit
BOI
Boise
€468 Return, found 1 day ago
€468
Return
found 1 day ago
Select American Airlines flight, departing Wed, 1 Apr from Detroit to Boise, returning Sun, 5 Apr, priced at €468 found 1 day ago
United
Thu, 12 Mar - Mon, 16 Mar
SLC
Salt Lake City
BOI
Boise
€528 Return, found 21 hours ago
€528
Return
found 21 hours ago
Select United flight, departing Thu, 12 Mar from Salt Lake City to Boise, returning Mon, 16 Mar, priced at €528 found 21 hours ago
American Airlines
Wed, 3 Jun - Tue, 29 Sept
BUD
Budapest
BOI
Boise
€672 Return, found 2 days ago
€672
Return
found 2 days ago
Select American Airlines flight, departing Wed, 3 Jun from Budapest to Boise, returning Tue, 29 Sept, priced at €672 found 2 days ago
Icelandair
Wed, 21 Oct - Sun, 1 Nov
DUB
Dublin
BOI
Boise
€768 Return, found 18 hours ago
€768
Return
found 18 hours ago
Select Icelandair flight, departing Wed, 21 Oct from Dublin to Boise, returning Sun, 1 Nov, priced at €768 found 18 hours ago
Condor
Wed, 3 Jun - Mon, 28 Sept
VIE
Vienna
BOI
Boise
€769 Return, found 2 hours ago
€769
Return
found 2 hours ago
Select Condor flight, departing Wed, 3 Jun from Vienna to Boise, returning Mon, 28 Sept, priced at €769 found 2 hours ago
Lufthansa
Wed, 3 Jun - Tue, 29 Sept
BUD
Budapest
BOI
Boise
€776 Return, found 2 days ago
€776
Return
found 2 days ago
Select Lufthansa flight, departing Wed, 3 Jun from Budapest to Boise, returning Tue, 29 Sept, priced at €776 found 2 days ago
Finnair
Fri, 8 May - Fri, 15 May
DUB
Dublin
BOI
Boise
€843 Return, found 6 days ago
€843
Return
found 6 days ago
Select Finnair flight, departing Fri, 8 May from Dublin to Boise, returning Fri, 15 May, priced at €843 found 6 days ago
Air Canada
Wed, 21 Oct - Sun, 1 Nov
DUB
Dublin
BOI
Boise
€856 Return, found 18 hours ago
€856
Return
found 18 hours ago
Select Air Canada flight, departing Wed, 21 Oct from Dublin to Boise, returning Sun, 1 Nov, priced at €856 found 18 hours ago

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.

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, €253 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 €253 and €856. If you were travelling one way out of Detroit (DTW), you could have gotten a low-cost fare from just €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.
How much is a plane ticket to Washington County?
Ticket prices ranged anywhere from €253 to €856 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.

Icelandair
Wed, 21 Oct - Sun, 1 Nov
DUB
Dublin
BOI
Boise
€768 Return, found 20 hours ago
€768
Return
found 20 hours ago
Select Icelandair flight, departing Wed, 21 Oct from Dublin to Boise, returning Sun, 1 Nov, priced at €768 found 20 hours ago
*Available to Expedia members.