Flight to Washington County

View S$318 flight on Sun, 1 Mar, 2026Opens in a new window

Popular airlines to Washington County

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

  • Breeze Airways

    Breeze Airways

  • KLM

    KLM

  • Air France

    Air France

  • Virgin Atlantic

    Virgin Atlantic

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at S$318 for one-way flights and S$435 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, 1 Mar - Sat, 7 Mar
ABE
Allentown
TRI
Tri-Cities
S$435 Return, found 1 day ago
S$435
Return
found 1 day ago
Select American Airlines flight, departing Sun, 1 Mar from Allentown to Tri-Cities, returning Sat, 7 Mar, priced at S$435 found 1 day ago
Delta
Wed, 1 Apr - Tue, 7 Apr
ABE
Allentown
TRI
Tri-Cities
S$478 Return, found 1 hour ago
S$478
Return
found 1 hour ago
Select Delta flight, departing Wed, 1 Apr from Allentown to Tri-Cities, returning Tue, 7 Apr, priced at S$478 found 1 hour ago
Delta
Sun, 1 Mar - Sat, 7 Mar
ABE
Allentown
TRI
Tri-Cities
S$487 Return, found 1 day ago
S$487
Return
found 1 day ago
Select Delta flight, departing Sun, 1 Mar from Allentown to Tri-Cities, returning Sat, 7 Mar, priced at S$487 found 1 day ago
American Airlines
Sun, 1 Mar - Sat, 7 Mar
ABE
Allentown
TRI
Tri-Cities
S$516 Return, found 1 day ago
S$516
Return
found 1 day ago
Select American Airlines flight, departing Sun, 1 Mar from Allentown to Tri-Cities, returning Sat, 7 Mar, priced at S$516 found 1 day ago
American Airlines
Wed, 1 Apr - Tue, 7 Apr
ABE
Allentown
TRI
Tri-Cities
S$517 Return, found 1 hour ago
S$517
Return
found 1 hour ago
Select American Airlines flight, departing Wed, 1 Apr from Allentown to Tri-Cities, returning Tue, 7 Apr, priced at S$517 found 1 hour ago
Delta
Wed, 1 Apr - Tue, 7 Apr
ABE
Allentown
TRI
Tri-Cities
S$531 Return, found 1 hour ago
S$531
Return
found 1 hour ago
Select Delta flight, departing Wed, 1 Apr from Allentown to Tri-Cities, returning Tue, 7 Apr, priced at S$531 found 1 hour ago
Delta
Wed, 1 Apr - Tue, 7 Apr
ABE
Allentown
TRI
Tri-Cities
S$555 Return, found 1 hour ago
S$555
Return
found 1 hour ago
Select Delta flight, departing Wed, 1 Apr from Allentown to Tri-Cities, returning Tue, 7 Apr, priced at S$555 found 1 hour ago
Delta
Sun, 1 Mar - Sat, 7 Mar
ABE
Allentown
TRI
Tri-Cities
S$563 Return, found 1 day ago
S$563
Return
found 1 day ago
Select Delta flight, departing Sun, 1 Mar from Allentown to Tri-Cities, returning Sat, 7 Mar, priced at S$563 found 1 day ago
American Airlines
Sun, 1 Mar - Sat, 7 Mar
ABE
Allentown
TRI
Tri-Cities
S$591 Return, found 1 day ago
S$591
Return
found 1 day ago
Select American Airlines flight, departing Sun, 1 Mar from Allentown to Tri-Cities, returning Sat, 7 Mar, priced at S$591 found 1 day ago
Delta
Sun, 1 Mar - Sat, 7 Mar
ABE
Allentown
TRI
Tri-Cities
S$594 Return, found 1 day ago
S$594
Return
found 1 day ago
Select Delta flight, departing Sun, 1 Mar from Allentown to Tri-Cities, returning Sat, 7 Mar, priced at S$594 found 1 day ago
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.

Washington County Flights Information

Airlines serving
American Airlines, Delta, United
Roundtrip price
from S$435

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$908. If you were flying one way from Allentown (ABE), you could have picked up a bargain from just S$318.
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$908. 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.
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