Cheap Flights to Washington County from ₩924,000

View ₩924,000 flight on Sun, May 10, 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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How much is the cheapest flight to Washington County?

Prices were available within the past 7 days and start at ₩924,000 for one-way flights and ₩1,283,800 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Nov 18 - Wed, Nov 25
ICN
Seoul
BOI
Boise
₩1,283,800 Roundtrip, found 4 hours ago
₩1,283,800
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Nov 18 from Seoul to Boise, returning Wed, Nov 25, priced at ₩1,283,800 found 4 hours ago
Hawaiian Airlines
Sat, Apr 4 - Sat, Apr 11
ICN
Seoul
BOI
Boise
₩1,308,200 Roundtrip, found 1 day ago
₩1,308,200
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, Apr 4 from Seoul to Boise, returning Sat, Apr 11, priced at ₩1,308,200 found 1 day ago
Delta
Fri, Apr 3 - Tue, Apr 7
ICN
Seoul
BOI
Boise
₩1,308,600 Roundtrip, found 6 days ago
₩1,308,600
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Apr 3 from Seoul to Boise, returning Tue, Apr 7, priced at ₩1,308,600 found 6 days ago
Delta
Fri, Nov 6 - Mon, Nov 9
ICN
Seoul
BOI
Boise
₩1,308,800 Roundtrip, found 4 days ago
₩1,308,800
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Nov 6 from Seoul to Boise, returning Mon, Nov 9, priced at ₩1,308,800 found 4 days ago
Delta
Fri, Nov 6 - Mon, Nov 9
ICN
Seoul
BOI
Boise
₩1,328,300 Roundtrip, found 4 days ago
₩1,328,300
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Nov 6 from Seoul to Boise, returning Mon, Nov 9, priced at ₩1,328,300 found 4 days ago
Delta
Thu, Apr 23 - Fri, May 1
ICN
Seoul
BOI
Boise
₩1,358,800 Roundtrip, found 1 day ago
₩1,358,800
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Apr 23 from Seoul to Boise, returning Fri, May 1, priced at ₩1,358,800 found 1 day ago
Hawaiian Airlines
Sat, Apr 4 - Sat, Apr 11
ICN
Seoul
BOI
Boise
₩1,383,200 Roundtrip, found 1 day ago
₩1,383,200
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, Apr 4 from Seoul to Boise, returning Sat, Apr 11, priced at ₩1,383,200 found 1 day ago
Korean Air
Wed, Nov 18 - Wed, Nov 25
ICN
Seoul
BOI
Boise
₩1,383,800 Roundtrip, found 4 hours ago
₩1,383,800
Roundtrip
found 4 hours ago
Select Korean Air flight, departing Wed, Nov 18 from Seoul to Boise, returning Wed, Nov 25, priced at ₩1,383,800 found 4 hours ago
United
Thu, Apr 23 - Fri, May 1
ICN
Seoul
BOI
Boise
₩1,725,700 Roundtrip, found 1 day ago
₩1,725,700
Roundtrip
found 1 day ago
Select United flight, departing Thu, Apr 23 from Seoul to Boise, returning Fri, May 1, priced at ₩1,725,700 found 1 day ago
Air Canada
Fri, Nov 6 - Mon, Nov 9
ICN
Seoul
BOI
Boise
₩1,803,800 Roundtrip, found 4 days ago
₩1,803,800
Roundtrip
found 4 days ago
Select Air Canada flight, departing Fri, Nov 6 from Seoul to Boise, returning Mon, Nov 9, priced at ₩1,803,800 found 4 days ago

Trending flights to Washington County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Nov 18 - Wed, Nov 25
ICN
Seoul
BOI
Boise
₩1,283,800 Roundtrip, found 4 hours ago
₩1,283,800
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Nov 18 from Seoul to Boise, returning Wed, Nov 25, priced at ₩1,283,800 found 4 hours 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, ₩1,283,800 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 ₩1,283,800 and ₩1,803,800. If you were traveling one way out of Seoul (ICN), you could have gotten a low-cost fare from just ₩924,000.
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 ₩1,283,800 to ₩1,803,800 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 60ºF and 85ºF 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

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About Washington County

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