Cheap Flights to Washington County from ₩1,252,600

View ₩1,252,600 flight on Wed, Apr 8, 2026Opens in a new window

Popular airlines to Washington County

  • American Airlines

  • Delta

  • United

  • KLM

  • Virgin Atlantic

  • Air France

  • Breeze Airways

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How much is the cheapest flight to Washington County?

Prices were available within the past 7 days and start at ₩1,252,600 for one-way flights and ₩1,914,900 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Apr 29 - Tue, May 5
ICN
Seoul
TRI
Tri-Cities
₩1,914,900 Roundtrip, found 1 day ago
₩1,914,900
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Apr 29 from Seoul to Tri-Cities, returning Tue, May 5, priced at ₩1,914,900 found 1 day ago
Delta
Wed, Apr 29 - Tue, May 5
ICN
Seoul
TRI
Tri-Cities
₩2,014,900 Roundtrip, found 1 day ago
₩2,014,900
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Apr 29 from Seoul to Tri-Cities, returning Tue, May 5, priced at ₩2,014,900 found 1 day ago
Delta
Wed, Apr 29 - Tue, May 5
ICN
Seoul
TRI
Tri-Cities
₩2,034,400 Roundtrip, found 1 day ago
₩2,034,400
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Apr 29 from Seoul to Tri-Cities, returning Tue, May 5, priced at ₩2,034,400 found 1 day ago
Korean Air
Wed, Apr 29 - Tue, May 5
ICN
Seoul
TRI
Tri-Cities
₩2,053,900 Roundtrip, found 1 day ago
₩2,053,900
Roundtrip
found 1 day ago
Select Korean Air flight, departing Wed, Apr 29 from Seoul to Tri-Cities, returning Tue, May 5, priced at ₩2,053,900 found 1 day ago
Delta
Tue, Apr 28 - Sat, May 9
ICN
Seoul
TRI
Tri-Cities
₩2,089,900 Roundtrip, found 1 day ago
₩2,089,900
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Apr 28 from Seoul to Tri-Cities, returning Sat, May 9, priced at ₩2,089,900 found 1 day ago
Delta
Tue, Apr 28 - Sat, May 9
ICN
Seoul
TRI
Tri-Cities
₩2,090,100 Roundtrip, found 4 days ago
₩2,090,100
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Apr 28 from Seoul to Tri-Cities, returning Sat, May 9, priced at ₩2,090,100 found 4 days ago
Delta
Tue, Apr 7 - Sun, Apr 19
ICN
Seoul
TRI
Tri-Cities
₩2,099,900 Roundtrip, found 1 day ago
₩2,099,900
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Apr 7 from Seoul to Tri-Cities, returning Sun, Apr 19, priced at ₩2,099,900 found 1 day ago
American Airlines
Wed, Apr 29 - Mon, May 4
ICN
Seoul
TRI
Tri-Cities
₩2,148,100 Roundtrip, found 4 days ago
₩2,148,100
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Apr 29 from Seoul to Tri-Cities, returning Mon, May 4, priced at ₩2,148,100 found 4 days ago
United
Mon, Jul 6 - Fri, Jul 17
ICN
Seoul
TRI
Tri-Cities
₩2,216,300 Roundtrip, found 1 day ago
₩2,216,300
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jul 6 from Seoul to Tri-Cities, returning Fri, Jul 17, priced at ₩2,216,300 found 1 day ago
WestJet
Fri, May 15 - Thu, Jun 4
ICN
Seoul
TRI
Tri-Cities
₩2,574,500 Roundtrip, found 1 day ago
₩2,574,500
Roundtrip
found 1 day ago
Select WestJet flight, departing Fri, May 15 from Seoul to Tri-Cities, returning Thu, Jun 4, priced at ₩2,574,500 found 1 day 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, Apr 29 - Tue, May 5
ICN
Seoul
TRI
Tri-Cities
₩1,914,900 Roundtrip, found 1 day ago
₩1,914,900
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Apr 29 from Seoul to Tri-Cities, returning Tue, May 5, priced at ₩1,914,900 found 1 day ago

Frequently asked questions

How do I find cheap flights to Washington County that have flexible change policies?
At Expedia, we've been channeling our inner acrobat to offer you the most flexible fares in town. Just tick the "No change fee" box right under the "Flexible change policies" filter to find the best flights to Washington County.
Which airlines fly to Washington County?
Find your passport, pack your bags and choose from these major airlines that have flights into or near Washington County:

  • American Airlines - 260 flights to or near Washington County each month, including 260 flights to Tri-Cities Regional Airport (TRI) per month.
  • Delta Air Lines - 108 flights to or near Washington County each month, including 108 flights to Tri-Cities Regional Airport (TRI) per month.
  • Allegiant Air - 17 flights to or near Washington County each month, including 17 flights to Tri-Cities Regional Airport (TRI) per month.

How can I find cheap tickets to Washington County?
You'll always get an amazing deal with Expedia, but our "flexible dates" search function makes it that much easier. Enter your preferred flight date, then click on the flexible dates box above to see the cheapest prices for nearby days. ₩1,914,900 was the cheapest price for a flight to Washington County in the last seven days.
How much is a flight to Washington County?
The cost of a round-trip ticket to Washington County in the last seven days fluctuated between ₩1,914,900 and ₩2,574,500. If you were flying one way from Seoul (ICN), you could have picked up a bargain from just ₩1,252,600.
What are the most popular airports to fly into in Washington County?
Pack your suitcase and fly into Tri-Cities Regional Airport (TRI), Washington County's primary flight hub. Book one of the 385 flights that touch down at this top destination every month.
When is the cheapest time to fly to Washington County?
Jetting off on a Tuesday, followed by a Monday, is generally the best way to land the cheapest flight. Steer clear of weekends if possible, because Saturday is typically the most expensive day. Spend the money you saved having fun in Washington County instead!
How much is a plane ticket to Washington County?
In the last seven days, seats to Washington County varied between ₩1,914,900 and ₩2,574,500. Prices usually rise as your travel date nears, so land yourself an awesome deal today.
What is the best time to go to Washington County?
If you want to experience Washington County's leading city when it's buzzing with activity, set off for Bristol sometime in June, July and August. Like most places in the Northern Hemisphere, summer here starts June 20, bringing average temperatures of between 60ºF and 85ºF.
What months are the cheapest to book a flight to Washington County?
February is the cheapest month to reserve a seat for your Washington County escape. Fares are priciest over the busy month of December, so keep clear of this time if possible.

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About Washington County

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About Washington County

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