A coastal landscape with a bay, forested hills, and a distant town.

Flight Destinations in Washington County

View ฿3,990 flight on Sat, 24 Oct 2026Opens in a new window

Flight 1

Flight 2

Popular airlines to Washington County

  • Alaska Airlines

  • United

  • Delta

  • American Airlines

  • Southwest Airlines

  • Frontier Airlines

  • JetBlue Airways

  • 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 ฿3,990 for one-way flights and ฿6,290 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 24 Oct - Fri, 30 Oct
SEA
Seattle
PDX
Portland
฿6,290 Return, found 1 hour ago
฿6,290
Return
found 1 hour ago
Select Delta flight, departing Sat, 24 Oct from Seattle to Portland, returning Fri, 30 Oct, priced at ฿6,290 found 1 hour ago
Delta
Sun, 25 Oct - Thu, 29 Oct
LAX
Los Angeles
PDX
Portland
฿9,980 Return, just found
฿9,980
Return
just found
Select Delta flight, departing Sun, 25 Oct from Los Angeles to Portland, returning Thu, 29 Oct, priced at ฿9,980 just found
United
Tue, 1 Dec - Thu, 10 Dec
LAX
Los Angeles
PDX
Portland
฿12,760 Return, found 5 days ago
฿12,760
Return
found 5 days ago
Select United flight, departing Tue, 1 Dec from Los Angeles to Portland, returning Thu, 10 Dec, priced at ฿12,760 found 5 days ago
American Airlines
Tue, 1 Dec - Thu, 10 Dec
LAX
Los Angeles
PDX
Portland
฿13,065 Return, found 5 days ago
฿13,065
Return
found 5 days ago
Select American Airlines flight, departing Tue, 1 Dec from Los Angeles to Portland, returning Thu, 10 Dec, priced at ฿13,065 found 5 days ago
Delta
Mon, 6 Jul - Wed, 15 Jul
ORD
Chicago
PDX
Portland
฿15,115 Return, found 1 day ago
฿15,115
Return
found 1 day ago
Select Delta flight, departing Mon, 6 Jul from Chicago to Portland, returning Wed, 15 Jul, priced at ฿15,115 found 1 day ago
Delta
Tue, 7 Jul - Wed, 15 Jul
EWR
New York
PDX
Portland
฿19,340 Return, found 1 day ago
฿19,340
Return
found 1 day ago
Select Delta flight, departing Tue, 7 Jul from New York to Portland, returning Wed, 15 Jul, priced at ฿19,340 found 1 day ago
Icelandair
Tue, 29 Sept - Thu, 8 Oct
BER
Berlin
PDX
Portland
฿23,630 Return, found 1 day ago
฿23,630
Return
found 1 day ago
Select Icelandair flight, departing Tue, 29 Sept from Berlin to Portland, returning Thu, 8 Oct, priced at ฿23,630 found 1 day ago
Air Canada
Tue, 29 Sept - Thu, 8 Oct
BER
Berlin
PDX
Portland
฿25,980 Return, found 1 day ago
฿25,980
Return
found 1 day ago
Select Air Canada flight, departing Tue, 29 Sept from Berlin to Portland, returning Thu, 8 Oct, priced at ฿25,980 found 1 day ago
Lufthansa
Tue, 29 Sept - Thu, 8 Oct
BER
Berlin
PDX
Portland
฿27,665 Return, found 1 day ago
฿27,665
Return
found 1 day ago
Select Lufthansa flight, departing Tue, 29 Sept from Berlin to Portland, returning Thu, 8 Oct, priced at ฿27,665 found 1 day ago
Swiss International Air Lines
Tue, 29 Sept - Thu, 8 Oct
BER
Berlin
PDX
Portland
฿27,675 Return, found 1 day ago
฿27,675
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Tue, 29 Sept from Berlin to Portland, returning Thu, 8 Oct, priced at ฿27,675 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.

Air Canada
Wed, 23 Sept - Wed, 7 Oct
BKK
Bangkok
PDX
Portland
฿29,040 Return, found 4 days ago
฿29,040
Return
found 4 days ago
Select Air Canada flight, departing Wed, 23 Sept from Bangkok to Portland, returning Wed, 7 Oct, priced at ฿29,040 found 4 days ago

Frequently asked questions

How do I find cheap flights to Washington County that have flexible change policies?
When it comes to travelling these days, flexibility is a must. That's why we've added a "No change fee" search function to help you locate flexible, low-priced fares to Washington County. It's at the top left of your screen just below the "Flexible change policies" subheading.
Which airlines fly to Washington County?
With a good range of airlines offering flights into or near Washington County, the choice is yours:

  • Alaska Airlines - 2,614 flights to or near Washington County each month, including 2,614 flights to Portland Intl. Airport (PDX) per month.
  • Delta Air Lines - 814 flights to or near Washington County each month, including 814 flights to Portland Intl. Airport (PDX) per month.
  • Southwest Airlines - 784 flights to or near Washington County each month, including 784 flights to Portland Intl. Airport (PDX) per month.

How can I find cheap tickets to Washington County?
An excellent strategy for scoring cheap tickets is to be flexible with your travel dates. Begin with searching for your flight to Washington County, then click on the "flexible dates" link to see prices for nearby days. Another helpful hint? Book well ahead of time. For an idea of costs, ฿6,290 was the best price for a flight to Washington County in the last seven days.
How much is a flight to Washington County?
You could have nabbed a return air ticket to Washington County from anywhere between ฿6,290 and ฿29,040 in the last seven days. For one-way journeys leaving from Seattle (SEA), the lowest amount paid during this period was just ฿3,990.
What are the most popular airports to fly into in Washington County?
Jet into Portland Intl. Airport (PDX) and sample the best that Washington County has to offer. As the region's main entry point, around 5,648 flights land here every month.
How much is a plane ticket to Washington County?
In the last seven days, tickets to Washington County varied between ฿6,290 and ฿29,040. Prices generally depend on the time of departure, airline, cabin class and how early the fare is booked.
What is the best time to go to Washington County?
Hillsboro, Washington County's most populous city, is a terrific destination to explore at anytime. Don't like the cold? Then venture here from June 20 onward in summer, when average temperatures range from 13ºC to 27ºC. March, May and June is when Hillsboro draws the biggest crowds.
What months are the cheapest to book a flight to Washington County?
To snap up a bargain flight to Washington County, try to book during February when ticket prices are at their cheapest. When do tickets cost the most? In the U.S, it's the month of December.

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.