Flight Destinations in Washington County

View ฿30,185 flight on Wed, 28 Jan 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 ฿30,185 for one-way flights and ฿39,120 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿39,120 Return, found 17 hours ago
฿39,120
Return
found 17 hours ago
Select Cathay Pacific flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿39,120 found 17 hours ago
Japan Airlines
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿53,790 Return, found 17 hours ago
฿53,790
Return
found 17 hours ago
Select Japan Airlines flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿53,790 found 17 hours ago
American Airlines
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿53,975 Return, found 17 hours ago
฿53,975
Return
found 17 hours ago
Select American Airlines flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿53,975 found 17 hours ago
American Airlines
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿54,055 Return, found 17 hours ago
฿54,055
Return
found 17 hours ago
Select American Airlines flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿54,055 found 17 hours ago
American Airlines
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿55,040 Return, found 17 hours ago
฿55,040
Return
found 17 hours ago
Select American Airlines flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿55,040 found 17 hours ago
Qatar Airways
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿56,680 Return, found 17 hours ago
฿56,680
Return
found 17 hours ago
Select Qatar Airways flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿56,680 found 17 hours ago
American Airlines
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿57,975 Return, found 17 hours ago
฿57,975
Return
found 17 hours ago
Select American Airlines flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿57,975 found 17 hours ago
Qatar Airways
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿58,525 Return, found 17 hours ago
฿58,525
Return
found 17 hours ago
Select Qatar Airways flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿58,525 found 17 hours ago
Finnair
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿58,985 Return, found 17 hours ago
฿58,985
Return
found 17 hours ago
Select Finnair flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿58,985 found 17 hours ago
Delta
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿60,275 Return, found 17 hours ago
฿60,275
Return
found 17 hours ago
Select Delta flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿60,275 found 17 hours ago
Korean Air
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿60,305 Return, found 17 hours ago
฿60,305
Return
found 17 hours ago
Select Korean Air flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿60,305 found 17 hours ago
Korean Air
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿60,365 Return, found 17 hours ago
฿60,365
Return
found 17 hours ago
Select Korean Air flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿60,365 found 17 hours ago
Japan Airlines
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿60,430 Return, found 17 hours ago
฿60,430
Return
found 17 hours ago
Select Japan Airlines flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿60,430 found 17 hours ago

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.

Frequently asked questions

How do I find cheap flights to Washington County that have flexible change policies?
When it comes to flying these days, flexibility is crucial. That's why we've added a "No change fee" search function to help you find cheap and flexible flights to Washington County. It's near the top left of your screen under the "Flexible change policies" subheading.
Which airlines fly to Washington County?
When you're ready to reserve your airfare to or near Washington County, these quality airlines look forward to welcoming you on board:

  • 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?
For an unbeatable deal to Washington County, book ahead of time. Also think about using Expedia's handy "flexible dates" feature at the top of your search results. This will display prices for the days around your travel dates. In the last seven days, ฿39,120 was the best price for a flight to Washington County.
How much is a flight to Washington County?
There were lots of affordable fares up for grabs in the last seven days, with the cost of a round-trip flight to Washington County varying between ฿39,120 and ฿65,230. Many lucky travellers scored one-way tickets from Bangkok (BKK) for only ฿30,185.
What are the most popular airports to fly into in Washington County?
Book your flight to Tri-Cities Regional Airport (TRI) and experience everything that Washington County has to offer. As the region's main entry point, about 385 flights touch down here each month.
How much is a plane ticket to Washington County?
In the last seven days, fares to Washington County varied between ฿39,120 and ฿65,230. Prices rise as your travel date nears, so land yourself a bargain today.
What is the best time to go to Washington County?
If you're eager to enjoy Washington County's most populous city at its liveliest, travel to Johnson City sometime during March, April and August. Similar to most places in the Northern Hemisphere, summer here begins June 20, with temperatures ranging between 16ºC and 29ºC.
What months are the cheapest to book a flight to Washington County?
Book your ticket in February for bargain flight deals to Washington County. The festive month of December is generally the most expensive time to buy a seat.

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
Wed, 28 Jan - Sun, 1 Feb
BKK
Bangkok
TRI
Tri-Cities
฿39,120 Return, found 17 hours ago
฿39,120
Return
found 17 hours ago
Select Cathay Pacific flight, departing Wed, 28 Jan from Bangkok to Tri-Cities, returning Sun, 1 Feb, priced at ฿39,120 found 17 hours ago
*Available to Expedia members.