£543 Cheap Flights to Washington County

View £543 flight on Mon, 16 Nov 2026Opens in a new window

Popular airlines to Washington County

  • American Airlines

  • Delta

  • United

  • KLM

  • Virgin Atlantic

  • Air France

  • Breeze Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% 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 £543 for one-way flights and £477 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, 21 Sept - Fri, 25 Sept
YUL
Montreal
TRI
Tri-Cities
£477 Return, found 16 hours ago
£477
Return
found 16 hours ago
Select American Airlines flight, departing Mon, 21 Sept from Montreal to Tri-Cities, returning Fri, 25 Sept, priced at £477 found 16 hours ago
Delta
Mon, 21 Sept - Fri, 25 Sept
YUL
Montreal
TRI
Tri-Cities
£477 Return, found 16 hours ago
£477
Return
found 16 hours ago
Select Delta flight, departing Mon, 21 Sept from Montreal to Tri-Cities, returning Fri, 25 Sept, priced at £477 found 16 hours ago
American Airlines
Mon, 21 Sept - Fri, 25 Sept
YUL
Montreal
TRI
Tri-Cities
£483 Return, found 16 hours ago
£483
Return
found 16 hours ago
Select American Airlines flight, departing Mon, 21 Sept from Montreal to Tri-Cities, returning Fri, 25 Sept, priced at £483 found 16 hours ago
American Airlines
Sun, 24 May - Sun, 31 May
YUL
Montreal
TRI
Tri-Cities
£486 Return, found 16 hours ago
£486
Return
found 16 hours ago
Select American Airlines flight, departing Sun, 24 May from Montreal to Tri-Cities, returning Sun, 31 May, priced at £486 found 16 hours ago
American Airlines
Sun, 24 May - Sun, 31 May
YUL
Montreal
TRI
Tri-Cities
£488 Return, found 16 hours ago
£488
Return
found 16 hours ago
Select American Airlines flight, departing Sun, 24 May from Montreal to Tri-Cities, returning Sun, 31 May, priced at £488 found 16 hours ago
Delta
Mon, 21 Sept - Fri, 25 Sept
YUL
Montreal
TRI
Tri-Cities
£494 Return, found 16 hours ago
£494
Return
found 16 hours ago
Select Delta flight, departing Mon, 21 Sept from Montreal to Tri-Cities, returning Fri, 25 Sept, priced at £494 found 16 hours ago
American Airlines
Mon, 21 Sept - Fri, 25 Sept
YUL
Montreal
TRI
Tri-Cities
£500 Return, found 16 hours ago
£500
Return
found 16 hours ago
Select American Airlines flight, departing Mon, 21 Sept from Montreal to Tri-Cities, returning Fri, 25 Sept, priced at £500 found 16 hours ago
WestJet
Mon, 21 Sept - Fri, 25 Sept
YUL
Montreal
TRI
Tri-Cities
£543 Return, found 16 hours ago
£543
Return
found 16 hours ago
Select WestJet flight, departing Mon, 21 Sept from Montreal to Tri-Cities, returning Fri, 25 Sept, priced at £543 found 16 hours ago
United
Mon, 21 Sept - Fri, 25 Sept
YUL
Montreal
TRI
Tri-Cities
£614 Return, found 16 hours ago
£614
Return
found 16 hours ago
Select United flight, departing Mon, 21 Sept from Montreal to Tri-Cities, returning Fri, 25 Sept, priced at £614 found 16 hours ago
Air France
Mon, 29 Jun - Thu, 16 Jul
DUB
Dublin
TRI
Tri-Cities
£664 Return, found 17 hours ago
£664
Return
found 17 hours ago
Select Air France flight, departing Mon, 29 Jun from Dublin to Tri-Cities, returning Thu, 16 Jul, priced at £664 found 17 hours ago

Trending flights to Washington County

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

KLM
Wed, 13 May - Thu, 4 Jun
LHR
London
TRI
Tri-Cities
£771 Return, found 5 hours ago
£771
Return
found 5 hours ago
Select KLM flight, departing Wed, 13 May from London to Tri-Cities, returning Thu, 4 Jun, priced at £771 found 5 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. £477 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 £477 and £771. If you were flying one way from Manchester (MAN), you could have picked up a bargain from just £543.
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 £477 and £771. 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.

Travel information

Washington County Flights Information

Airlines serving
American Airlines, Delta, WestJet, United, KLM, Air France, Lufthansa, Virgin Atlantic
Roundtrip price
from £477
Washington County Flights Information

Explore a world of travel with Expedia

*Available to Expedia members.