£45 Cheap Flights to Washington County

Popular airlines to Washington County

  • British Airways

    British Airways

  • easyJet

    easyJet

  • Lufthansa

    Lufthansa

  • Ryanair

    Ryanair

  • American Airlines

    American Airlines

  • Jet2

    Jet2

  • Swiss International Air Lines

    Swiss International Air Lines

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 25% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at £45 for one-way flights and £88 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 3 Sep - Tue, 9 Sep
GEG
Spokane
BOI
Boise
£88 Return, found 6 days ago
£88
Return
found 6 days ago
Select Alaska Airlines flight, departing Wed, 3 Sep from Spokane to Boise, returning Tue, 9 Sep, priced at £88 found 6 days ago
Alaska Airlines
Tue, 6 Jan - Tue, 13 Jan
SFO
San Francisco
BOI
Boise
£90 Return, found 16 hours ago
£90
Return
found 16 hours ago
Select Alaska Airlines flight, departing Tue, 6 Jan from San Francisco to Boise, returning Tue, 13 Jan, priced at £90 found 16 hours ago
Alaska Airlines
Wed, 29 Oct - Mon, 3 Nov
LAS
Las Vegas
BOI
Boise
£93 Return, found 3 days ago
£93
Return
found 3 days ago
Select Alaska Airlines flight, departing Wed, 29 Oct from Las Vegas to Boise, returning Mon, 3 Nov, priced at £93 found 3 days ago
Alaska Airlines
Wed, 18 Feb - Wed, 25 Feb
ONT
Ontario
BOI
Boise
£101 Return, found 16 hours ago
£101
Return
found 16 hours ago
Select Alaska Airlines flight, departing Wed, 18 Feb from Ontario to Boise, returning Wed, 25 Feb, priced at £101 found 16 hours ago
Alaska Airlines
Wed, 18 Feb - Wed, 25 Feb
BUR
Burbank
BOI
Boise
£102 Return, found 19 hours ago
£102
Return
found 19 hours ago
Select Alaska Airlines flight, departing Wed, 18 Feb from Burbank to Boise, returning Wed, 25 Feb, priced at £102 found 19 hours ago
Alaska Airlines
Sat, 8 Nov - Mon, 10 Nov
PDX
Portland
BOI
Boise
£103 Return, found 4 days ago
£103
Return
found 4 days ago
Select Alaska Airlines flight, departing Sat, 8 Nov from Portland to Boise, returning Mon, 10 Nov, priced at £103 found 4 days ago
Hawaiian Airlines
Tue, 21 Oct - Tue, 4 Nov
LAX
Los Angeles
BOI
Boise
£139 Return, found 1 day ago
£139
Return
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, 21 Oct from Los Angeles to Boise, returning Tue, 4 Nov, priced at £139 found 1 day ago
Delta
Wed, 10 Sep - Sat, 27 Sep
LAX
Los Angeles
BOI
Boise
£147 Return, found 1 day ago
£147
Return
found 1 day ago
Select Delta flight, departing Wed, 10 Sep from Los Angeles to Boise, returning Sat, 27 Sep, priced at £147 found 1 day ago
United
Wed, 20 Aug - Tue, 2 Sep
DEN
Denver
BOI
Boise
£272 Return, found 3 days ago
£272
Return
found 3 days ago
Select United flight, departing Wed, 20 Aug from Denver to Boise, returning Tue, 2 Sep, priced at £272 found 3 days ago
American Airlines
Sat, 23 Aug - Sun, 31 Aug
DEN
Denver
BOI
Boise
£356 Return, found 3 days ago
£356
Return
found 3 days ago
Select American Airlines flight, departing Sat, 23 Aug from Denver to Boise, returning Sun, 31 Aug, priced at £356 found 3 days ago

Top tips for booking flights to Washington County from UK

Get ready to fly to Washington County

Prepare your luggage and book your flights to Washington County with Expedia. We offer a seamless flight booking experience, with a wide range of Washington County plane tickets to choose from. If you need help finding some of the best deals for cheap flights to Washington County in 2025, we are always available to assist you. Book your flights to Washington County today and let the adventure begin!

Find the best tickets to Washington County

To find some of the best tickets to Washington County in 2025, use Expedia's powerful search engine to compare dates and the different departure and arrival airports for your trip. Whether you're after direct flights to Washington County or last-minute flights to Washington County, you can filter and sort your search results, making it easy to find the ideal flight to Washington County.

Airlines fly to Washington County

There are 20 different airlines that fly to Washington County including some of the most trusted names in the business. To book flights to Washington County with your favourite airline, take a look at Expedia's flight listings and try out different dates to find some of the best Washington County plane tickets.

Find the cheapest flights to Washington County

By booking early you may find some of the best deals for Washington County flights from the UK, including Washington County direct flights. You can usually find affordable and cheap flights to Washington County, whether one-way from £45 or round-trip from £88, with Expedia if you book your trip far enough in advance.

Find the best airports for cheap flights to Washington County

Try searching for different Washington County airports with Expedia to find some of the cheapest flights to Washington County. Flights from Las Vegas (LAS) to Boise (BOI) usually have the lowest price from £45.

Why book your flights to Washington County with Expedia

Expedia offers great deals on Washington County air fares from £45 to cater to every budget. Not only is Expedia one of the top platforms to book flights to Washington County from the UK, it is also your one-stop shop for booking hotels, car rentals, and more.

 

*Prices and availability are subject to change. Additional terms apply.

Washington County Flights Information

Airlines serving
Alaska Airlines, Delta, United, Hawaiian Airlines, American Airlines, Air Dolomiti, Lufthansa
Roundtrip price
from £88

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, £88 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 £88 and £627. If you were travelling one way out of Las Vegas (LAS), you could have gotten a low-cost fare from just £45.
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 £88 to £627 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.

Lufthansa
Wed, 7 Jan - Wed, 21 Jan
LHR
London
BOI
Boise
£576 Return, found 5 days ago
£576
Return
found 5 days ago
Select Lufthansa flight, departing Wed, 7 Jan from London to Boise, returning Wed, 21 Jan, priced at £576 found 5 days ago
*Available to Expedia members.