Cheap Flights to Washington County from ₩624,800

View ₩624,800 flight on Mon, Feb 23, 2026Opens in a new window

Popular airlines to Washington County

  • Asiana Airlines

  • T'way Air with baggage

  • Korean Air

  • Peach

  • HK Express

  • JIN AIR

  • AirAsia Philippines

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How much is the cheapest flight to Washington County?

Prices were available within the past 7 days and start at ₩624,800 for one-way flights and ₩956,700 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Mon, Feb 2 - Thu, Feb 12
ICN
Seoul
BOI
Boise
₩956,700 Roundtrip, found 23 hours ago
₩956,700
Roundtrip
found 23 hours ago
Select Hawaiian Airlines flight, departing Mon, Feb 2 from Seoul to Boise, returning Thu, Feb 12, priced at ₩956,700 found 23 hours ago
Delta
Tue, Feb 3 - Thu, Feb 12
ICN
Seoul
BOI
Boise
₩968,100 Roundtrip, found 23 hours ago
₩968,100
Roundtrip
found 23 hours ago
Select Delta flight, departing Tue, Feb 3 from Seoul to Boise, returning Thu, Feb 12, priced at ₩968,100 found 23 hours ago
Delta
Thu, Feb 5 - Sat, Feb 7
ICN
Seoul
BOI
Boise
₩989,000 Roundtrip, found 23 hours ago
₩989,000
Roundtrip
found 23 hours ago
Select Delta flight, departing Thu, Feb 5 from Seoul to Boise, returning Sat, Feb 7, priced at ₩989,000 found 23 hours ago
Delta
Thu, Feb 5 - Sat, Feb 7
ICN
Seoul
BOI
Boise
₩1,010,000 Roundtrip, found 23 hours ago
₩1,010,000
Roundtrip
found 23 hours ago
Select Delta flight, departing Thu, Feb 5 from Seoul to Boise, returning Sat, Feb 7, priced at ₩1,010,000 found 23 hours ago
Hawaiian Airlines
Mon, Feb 2 - Sun, Feb 8
ICN
Seoul
BOI
Boise
₩1,031,900 Roundtrip, found 6 days ago
₩1,031,900
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Mon, Feb 2 from Seoul to Boise, returning Sun, Feb 8, priced at ₩1,031,900 found 6 days ago
Delta
Mon, Feb 2 - Fri, Feb 13
ICN
Seoul
BOI
Boise
₩1,043,100 Roundtrip, found 23 hours ago
₩1,043,100
Roundtrip
found 23 hours ago
Select Delta flight, departing Mon, Feb 2 from Seoul to Boise, returning Fri, Feb 13, priced at ₩1,043,100 found 23 hours ago
Delta
Mon, Feb 9 - Fri, Feb 13
ICN
Seoul
BOI
Boise
₩1,045,300 Roundtrip, found 5 days ago
₩1,045,300
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Feb 9 from Seoul to Boise, returning Fri, Feb 13, priced at ₩1,045,300 found 5 days ago
Alaska Airlines
Sat, Feb 7 - Fri, Feb 13
ICN
Seoul
BOI
Boise
₩1,055,300 Roundtrip, found 23 hours ago
₩1,055,300
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Sat, Feb 7 from Seoul to Boise, returning Fri, Feb 13, priced at ₩1,055,300 found 23 hours ago
Korean Air
Fri, May 1 - Thu, May 7
ICN
Seoul
BOI
Boise
₩1,068,100 Roundtrip, found 15 hours ago
₩1,068,100
Roundtrip
found 15 hours ago
Select Korean Air flight, departing Fri, May 1 from Seoul to Boise, returning Thu, May 7, priced at ₩1,068,100 found 15 hours ago
United
Wed, Feb 4 - Sun, Feb 8
ICN
Seoul
BOI
Boise
₩1,079,000 Roundtrip, found 23 hours ago
₩1,079,000
Roundtrip
found 23 hours ago
Select United flight, departing Wed, Feb 4 from Seoul to Boise, returning Sun, Feb 8, priced at ₩1,079,000 found 23 hours ago

About Washington County

Expedia offers flights to Washington County to meet every traveler'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, ₩956,700 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 ₩956,700 and ₩1,079,000. If you were traveling one way out of Seoul (ICN), you could have gotten a low-cost fare from just ₩624,800.
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 ₩956,700 to ₩1,079,000 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.

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.

Hawaiian Airlines
Mon, Feb 2 - Thu, Feb 12
ICN
Seoul
BOI
Boise
₩956,700 Roundtrip, found 23 hours ago
₩956,700
Roundtrip
found 23 hours ago
Select Hawaiian Airlines flight, departing Mon, Feb 2 from Seoul to Boise, returning Thu, Feb 12, priced at ₩956,700 found 23 hours ago
*Available to Expedia members.