Flight to Washington County

View S$427 flight on Fri, 29 May, 2026Opens in a new window

Popular airlines to Washington County

  • American Airlines

  • Delta

  • Breeze Airways

  • KLM

  • Air France

  • United

  • Virgin Atlantic

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% 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 S$427 for one-way flights and S$435 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 29 May - Fri, 5 Jun
BWI
Baltimore
TRI
Tri-Cities
S$435 Return, found 21 hours ago
S$435
Return
found 21 hours ago
Select Delta flight, departing Fri, 29 May from Baltimore to Tri-Cities, returning Fri, 5 Jun, priced at S$435 found 21 hours ago
American Airlines
Fri, 29 May - Fri, 5 Jun
BWI
Baltimore
TRI
Tri-Cities
S$524 Return, found 21 hours ago
S$524
Return
found 21 hours ago
Select American Airlines flight, departing Fri, 29 May from Baltimore to Tri-Cities, returning Fri, 5 Jun, priced at S$524 found 21 hours ago
Delta
Fri, 29 May - Fri, 5 Jun
BWI
Baltimore
TRI
Tri-Cities
S$537 Return, found 21 hours ago
S$537
Return
found 21 hours ago
Select Delta flight, departing Fri, 29 May from Baltimore to Tri-Cities, returning Fri, 5 Jun, priced at S$537 found 21 hours ago
American Airlines
Fri, 29 May - Fri, 5 Jun
BWI
Baltimore
TRI
Tri-Cities
S$573 Return, found 21 hours ago
S$573
Return
found 21 hours ago
Select American Airlines flight, departing Fri, 29 May from Baltimore to Tri-Cities, returning Fri, 5 Jun, priced at S$573 found 21 hours ago
Delta
Fri, 29 May - Fri, 5 Jun
BWI
Baltimore
TRI
Tri-Cities
S$593 Return, found 21 hours ago
S$593
Return
found 21 hours ago
Select Delta flight, departing Fri, 29 May from Baltimore to Tri-Cities, returning Fri, 5 Jun, priced at S$593 found 21 hours ago
Delta
Fri, 29 May - Fri, 5 Jun
BWI
Baltimore
TRI
Tri-Cities
S$602 Return, found 21 hours ago
S$602
Return
found 21 hours ago
Select Delta flight, departing Fri, 29 May from Baltimore to Tri-Cities, returning Fri, 5 Jun, priced at S$602 found 21 hours ago
American Airlines
Fri, 29 May - Fri, 5 Jun
BWI
Baltimore
TRI
Tri-Cities
S$615 Return, found 21 hours ago
S$615
Return
found 21 hours ago
Select American Airlines flight, departing Fri, 29 May from Baltimore to Tri-Cities, returning Fri, 5 Jun, priced at S$615 found 21 hours ago
Cathay Pacific
Mon, 22 Jun - Sun, 28 Jun
SIN
Singapore
TRI
Tri-Cities
S$1,873 Return, found 3 hours ago
S$1,873
Return
found 3 hours ago
Select Cathay Pacific flight, departing Mon, 22 Jun from Singapore to Tri-Cities, returning Sun, 28 Jun, priced at S$1,873 found 3 hours ago
Qatar Airways
Fri, 10 Jul - Sun, 26 Jul
SIN
Singapore
TRI
Tri-Cities
S$2,571 Return, found 1 day ago
S$2,571
Return
found 1 day ago
Select Qatar Airways flight, departing Fri, 10 Jul from Singapore to Tri-Cities, returning Sun, 26 Jul, priced at S$2,571 found 1 day ago
Korean Air
Sun, 19 Jul - Wed, 29 Jul
SIN
Singapore
TRI
Tri-Cities
S$2,887 Return, found 1 day ago
S$2,887
Return
found 1 day ago
Select Korean Air flight, departing Sun, 19 Jul from Singapore to Tri-Cities, returning Wed, 29 Jul, priced at S$2,887 found 1 day 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.

Cathay Pacific
Mon, 22 Jun - Sun, 28 Jun
SIN
Singapore
TRI
Tri-Cities
S$1,873 Return, found 3 hours ago
S$1,873
Return
found 3 hours ago
Select Cathay Pacific flight, departing Mon, 22 Jun from Singapore to Tri-Cities, returning Sun, 28 Jun, priced at S$1,873 found 3 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. S$435 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$435 and S$2,887. If you were flying one way from Baltimore (BWI), you could have picked up a bargain from just S$427.
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$435 and S$2,887. 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
American Airlines, Delta, United, Cathay Pacific, Qatar Airways, Korean Air
Roundtrip price
from S$435
Washington County Flights Information
*Available to Expedia members.