Cheap flights to Washington County

View €350 flight on Wed, 13 May 2026Opens in a new window

Popular airlines to Washington County

  • American Airlines

  • Delta

  • Breeze Airways

  • KLM

  • Virgin Atlantic

  • Air France

  • United

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 15% on select hotels after you book a flight*

  • 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 €350 for one-way flights and €255 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, 29 May - Sun, 31 May
IND
Indianapolis
TRI
Tri-Cities
€255 Return, found 17 hours ago
€255
Return
found 17 hours ago
Select American Airlines flight, departing Fri, 29 May from Indianapolis to Tri-Cities, returning Sun, 31 May, priced at €255 found 17 hours ago
Delta
Fri, 29 May - Sun, 31 May
IND
Indianapolis
TRI
Tri-Cities
€277 Return, found 17 hours ago
€277
Return
found 17 hours ago
Select Delta flight, departing Fri, 29 May from Indianapolis to Tri-Cities, returning Sun, 31 May, priced at €277 found 17 hours ago
American Airlines
Mon, 11 May - Mon, 18 May
BWI
Baltimore
TRI
Tri-Cities
€314 Return, found 2 hours ago
€314
Return
found 2 hours ago
Select American Airlines flight, departing Mon, 11 May from Baltimore to Tri-Cities, returning Mon, 18 May, priced at €314 found 2 hours ago
American Airlines
Fri, 29 May - Sun, 31 May
IND
Indianapolis
TRI
Tri-Cities
€318 Return, found 17 hours ago
€318
Return
found 17 hours ago
Select American Airlines flight, departing Fri, 29 May from Indianapolis to Tri-Cities, returning Sun, 31 May, priced at €318 found 17 hours ago
American Airlines
Fri, 29 May - Sun, 31 May
IND
Indianapolis
TRI
Tri-Cities
€339 Return, found 17 hours ago
€339
Return
found 17 hours ago
Select American Airlines flight, departing Fri, 29 May from Indianapolis to Tri-Cities, returning Sun, 31 May, priced at €339 found 17 hours ago
American Airlines
Wed, 13 May - Wed, 20 May
BWI
Baltimore
TRI
Tri-Cities
€347 Return, found 13 hours ago
€347
Return
found 13 hours ago
Select American Airlines flight, departing Wed, 13 May from Baltimore to Tri-Cities, returning Wed, 20 May, priced at €347 found 13 hours ago
American Airlines
Fri, 29 May - Sun, 31 May
IND
Indianapolis
TRI
Tri-Cities
€352 Return, found 17 hours ago
€352
Return
found 17 hours ago
Select American Airlines flight, departing Fri, 29 May from Indianapolis to Tri-Cities, returning Sun, 31 May, priced at €352 found 17 hours ago
Delta
Wed, 13 May - Wed, 20 May
BWI
Baltimore
TRI
Tri-Cities
€355 Return, found 13 hours ago
€355
Return
found 13 hours ago
Select Delta flight, departing Wed, 13 May from Baltimore to Tri-Cities, returning Wed, 20 May, priced at €355 found 13 hours ago
Delta
Fri, 29 May - Sun, 31 May
IND
Indianapolis
TRI
Tri-Cities
€356 Return, found 17 hours ago
€356
Return
found 17 hours ago
Select Delta flight, departing Fri, 29 May from Indianapolis to Tri-Cities, returning Sun, 31 May, priced at €356 found 17 hours ago
Delta
Mon, 11 May - Mon, 18 May
BWI
Baltimore
TRI
Tri-Cities
€357 Return, found 2 hours ago
€357
Return
found 2 hours ago
Select Delta flight, departing Mon, 11 May from Baltimore to Tri-Cities, returning Mon, 18 May, priced at €357 found 2 hours 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. €255 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 €255 and €668. If you were flying one way from Baltimore (BWI), you could have picked up a bargain from just €350.
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.
How much is a plane ticket to Washington County?
In the last seven days, seats to Washington County varied between €255 and €668. 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

About Washington County

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.
About Washington County
*Available to Expedia members.