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Flight to Washington County

View S$335 flight on Fri, 21 Aug, 2026Opens in a new window

Popular airlines to Washington County

  • American Airlines

  • Delta

  • KLM

  • Air France

  • Breeze Airways

  • Virgin Atlantic

  • United

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at S$335 for one-way flights and S$375 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 21 Aug - Mon, 24 Aug
IAD
Washington
TRI
Tri-Cities
S$375 Return, found 1 day ago
S$375
Return
found 1 day ago
Select Delta flight, departing Fri, 21 Aug from Washington to Tri-Cities, returning Mon, 24 Aug, priced at S$375 found 1 day ago
Delta
Fri, 21 Aug - Mon, 24 Aug
IAD
Washington
TRI
Tri-Cities
S$394 Return, found 1 day ago
S$394
Return
found 1 day ago
Select Delta flight, departing Fri, 21 Aug from Washington to Tri-Cities, returning Mon, 24 Aug, priced at S$394 found 1 day ago
Delta
Fri, 21 Aug - Mon, 24 Aug
IAD
Washington
TRI
Tri-Cities
S$414 Return, found 1 day ago
S$414
Return
found 1 day ago
Select Delta flight, departing Fri, 21 Aug from Washington to Tri-Cities, returning Mon, 24 Aug, priced at S$414 found 1 day ago
American Airlines
Fri, 21 Aug - Mon, 24 Aug
IAD
Washington
TRI
Tri-Cities
S$465 Return, found 1 day ago
S$465
Return
found 1 day ago
Select American Airlines flight, departing Fri, 21 Aug from Washington to Tri-Cities, returning Mon, 24 Aug, priced at S$465 found 1 day ago
Delta
Fri, 21 Aug - Mon, 24 Aug
IAD
Washington
TRI
Tri-Cities
S$478 Return, found 1 day ago
S$478
Return
found 1 day ago
Select Delta flight, departing Fri, 21 Aug from Washington to Tri-Cities, returning Mon, 24 Aug, priced at S$478 found 1 day ago
Delta
Fri, 21 Aug - Mon, 24 Aug
IAD
Washington
TRI
Tri-Cities
S$484 Return, found 1 day ago
S$484
Return
found 1 day ago
Select Delta flight, departing Fri, 21 Aug from Washington to Tri-Cities, returning Mon, 24 Aug, priced at S$484 found 1 day ago
Delta
Fri, 21 Aug - Mon, 24 Aug
IAD
Washington
TRI
Tri-Cities
S$497 Return, found 1 day ago
S$497
Return
found 1 day ago
Select Delta flight, departing Fri, 21 Aug from Washington to Tri-Cities, returning Mon, 24 Aug, priced at S$497 found 1 day ago
Delta
Fri, 21 Aug - Mon, 24 Aug
IAD
Washington
TRI
Tri-Cities
S$504 Return, found 1 day ago
S$504
Return
found 1 day ago
Select Delta flight, departing Fri, 21 Aug from Washington to Tri-Cities, returning Mon, 24 Aug, priced at S$504 found 1 day ago
Delta
Fri, 21 Aug - Mon, 24 Aug
IAD
Washington
TRI
Tri-Cities
S$512 Return, found 1 day ago
S$512
Return
found 1 day ago
Select Delta flight, departing Fri, 21 Aug from Washington to Tri-Cities, returning Mon, 24 Aug, priced at S$512 found 1 day ago
Delta
Fri, 21 Aug - Mon, 24 Aug
IAD
Washington
TRI
Tri-Cities
S$517 Return, found 1 day ago
S$517
Return
found 1 day ago
Select Delta flight, departing Fri, 21 Aug from Washington to Tri-Cities, returning Mon, 24 Aug, priced at S$517 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. S$375 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 S$375 and S$517. If you were flying one way from Washington (IAD), you could have picked up a bargain from just S$335.
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 S$375 and S$517. 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 16ºC and 29ºC.
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.

Book with confidence

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.

Travel information

Washington County Flights Information

Airlines serving
Delta, American Airlines
Roundtrip price
from S$375
Washington County Flights Information
*Available to Expedia members.