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

Cheap Flights to Washington County | Popular Routes to Washington County from HK$939

View HK$939 flight on Sat, 5 Sept 2026Opens in a new window

Popular airlines to Washington County

  • Alaska Airlines

  • United

  • Delta

  • American Airlines

  • Southwest Airlines

  • Frontier Airlines

  • JetBlue Airways

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at HK$939 for one-way flights and HK$1,470 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 20 Aug - Tue, 1 Sept
SEA
Seattle
PDX
Portland
HK$1,470 Return, found 6 days ago
HK$1,470
Return
found 6 days ago
Select Delta flight, departing Thu, 20 Aug from Seattle to Portland, returning Tue, 1 Sept, priced at HK$1,470 found 6 days ago
Delta
Sat, 22 Aug - Mon, 24 Aug
LAX
Los Angeles
PDX
Portland
HK$1,749 Return, found 6 days ago
HK$1,749
Return
found 6 days ago
Select Delta flight, departing Sat, 22 Aug from Los Angeles to Portland, returning Mon, 24 Aug, priced at HK$1,749 found 6 days ago
Delta
Sat, 18 Jul - Wed, 22 Jul
ONT
Ontario
PDX
Portland
HK$1,948 Return, found 1 day ago
HK$1,948
Return
found 1 day ago
Select Delta flight, departing Sat, 18 Jul from Ontario to Portland, returning Wed, 22 Jul, priced at HK$1,948 found 1 day ago
United
Sat, 22 Aug - Sat, 29 Aug
LAX
Los Angeles
PDX
Portland
HK$2,099 Return, found 4 days ago
HK$2,099
Return
found 4 days ago
Select United flight, departing Sat, 22 Aug from Los Angeles to Portland, returning Sat, 29 Aug, priced at HK$2,099 found 4 days ago
Air Canada
Thu, 23 Jul - Sun, 26 Jul
YVR
Vancouver
PDX
Portland
HK$2,227 Return, found 1 day ago
HK$2,227
Return
found 1 day ago
Select Air Canada flight, departing Thu, 23 Jul from Vancouver to Portland, returning Sun, 26 Jul, priced at HK$2,227 found 1 day ago
Delta
Fri, 17 Jul - Fri, 24 Jul
YYZ
Toronto
PDX
Portland
HK$2,377 Return, found 1 day ago
HK$2,377
Return
found 1 day ago
Select Delta flight, departing Fri, 17 Jul from Toronto to Portland, returning Fri, 24 Jul, priced at HK$2,377 found 1 day ago
American Airlines
Sat, 22 Aug - Mon, 24 Aug
LAX
Los Angeles
PDX
Portland
HK$2,491 Return, found 6 days ago
HK$2,491
Return
found 6 days ago
Select American Airlines flight, departing Sat, 22 Aug from Los Angeles to Portland, returning Mon, 24 Aug, priced at HK$2,491 found 6 days ago
Delta
Thu, 22 Oct - Thu, 29 Oct
STS
Santa Rosa
PDX
Portland
HK$2,787 Return, found 5 days ago
HK$2,787
Return
found 5 days ago
Select Delta flight, departing Thu, 22 Oct from Santa Rosa to Portland, returning Thu, 29 Oct, priced at HK$2,787 found 5 days ago
Air Canada
Sat, 19 Sept - Fri, 25 Sept
YQB
Québec City
PDX
Portland
HK$3,458 Return, found 23 hours ago
HK$3,458
Return
found 23 hours ago
Select Air Canada flight, departing Sat, 19 Sept from Québec City to Portland, returning Fri, 25 Sept, priced at HK$3,458 found 23 hours ago
WestJet
Tue, 11 Aug - Thu, 13 Aug
YVR
Vancouver
PDX
Portland
HK$5,423 Return, found 2 days ago
HK$5,423
Return
found 2 days ago
Select WestJet flight, departing Tue, 11 Aug from Vancouver to Portland, returning Thu, 13 Aug, priced at HK$5,423 found 2 days 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
Fri, 11 Sept - Sat, 31 Oct
HKG
Hong Kong SAR
PDX
Portland
HK$6,046 Return, found 2 days ago
HK$6,046
Return
found 2 days ago
Select Air Canada flight, departing Fri, 11 Sept from Hong Kong SAR to Portland, returning Sat, 31 Oct, priced at HK$6,046 found 2 days ago

Frequently asked questions

How do I find cheap flights to Washington County that have flexible change policies?
When it comes to traveling 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, HK$1,470 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 HK$1,470 and HK$6,046 in the last seven days. For one-way journeys leaving from Seattle (PAE), the lowest amount paid during this period was just HK$939.
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.
When is the cheapest time to fly to Washington County?
Leave for Washington County early in the week and you'll usually be rewarded with lower fares. Tuesday is generally the cheapest day to jet off, closely followed by Monday. If you're eager to avoid the priciest flights, steer clear of Saturdays.
How much is a plane ticket to Washington County?
In the last seven days, tickets to Washington County varied between HK$1,470 and HK$6,046. 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
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