Aerial view at Henry Hagg Lake - artificial lake in Washington County, northwest Oregon - a popular place for picnicking, boating and other summer activities

Cheap Flights to Washington County from ₩180,100

View ₩180,100 flight on Sat, Aug 29, 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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How much is the cheapest flight to Washington County?

Prices were available within the past 7 days and start at ₩180,100 for one-way flights and ₩303,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Aug 26 - Sat, Aug 29
LAX
Los Angeles
PDX
Portland
₩303,200 Roundtrip, found 1 day ago
₩303,200
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 26 from Los Angeles to Portland, returning Sat, Aug 29, priced at ₩303,200 found 1 day ago
Delta
Wed, Oct 14 - Sat, Oct 17
LAX
Los Angeles
PDX
Portland
₩317,700 Roundtrip, found 3 days ago
₩317,700
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Oct 14 from Los Angeles to Portland, returning Sat, Oct 17, priced at ₩317,700 found 3 days ago
Delta
Tue, Sep 1 - Sun, Sep 6
LAX
Los Angeles
PDX
Portland
₩340,700 Roundtrip, found 5 days ago
₩340,700
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Sep 1 from Los Angeles to Portland, returning Sun, Sep 6, priced at ₩340,700 found 5 days ago
Delta
Thu, Oct 1 - Sun, Oct 11
LAX
Los Angeles
PDX
Portland
₩363,700 Roundtrip, found 3 days ago
₩363,700
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Oct 1 from Los Angeles to Portland, returning Sun, Oct 11, priced at ₩363,700 found 3 days ago
Delta
Fri, Sep 11 - Mon, Sep 14
LAX
Los Angeles
PDX
Portland
₩364,800 Roundtrip, found 1 day ago
₩364,800
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Sep 11 from Los Angeles to Portland, returning Mon, Sep 14, priced at ₩364,800 found 1 day ago
Delta
Wed, Oct 14 - Sat, Oct 17
ONT
Ontario
PDX
Portland
₩378,800 Roundtrip, found 3 days ago
₩378,800
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Oct 14 from Ontario to Portland, returning Sat, Oct 17, priced at ₩378,800 found 3 days ago
United
Wed, Oct 14 - Sat, Oct 17
LAX
Los Angeles
PDX
Portland
₩409,500 Roundtrip, found 3 days ago
₩409,500
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 14 from Los Angeles to Portland, returning Sat, Oct 17, priced at ₩409,500 found 3 days ago
Alaska Airlines
Sat, Jul 4 - Tue, Jul 14
LAX
Los Angeles
PDX
Portland
₩435,600 Roundtrip, found 4 days ago
₩435,600
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Jul 4 from Los Angeles to Portland, returning Tue, Jul 14, priced at ₩435,600 found 4 days ago
American Airlines
Wed, Oct 14 - Sat, Oct 17
LAX
Los Angeles
PDX
Portland
₩440,500 Roundtrip, found 3 days ago
₩440,500
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Oct 14 from Los Angeles to Portland, returning Sat, Oct 17, priced at ₩440,500 found 3 days ago
Air Canada
Tue, Oct 20 - Tue, Oct 27
ICN
Seoul
PDX
Portland
₩1,765,200 Roundtrip, found 2 days ago
₩1,765,200
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Oct 20 from Seoul to Portland, returning Tue, Oct 27, priced at ₩1,765,200 found 2 days ago

Trending flights to Washington County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Jun 29 - Sun, Jul 12
ICN
Seoul
PDX
Portland
₩1,617,600 Roundtrip, found 1 day ago
₩1,617,600
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Jun 29 from Seoul to Portland, returning Sun, Jul 12, priced at ₩1,617,600 found 1 day 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, ₩303,200 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 ₩303,200 and ₩1,765,200 in the last seven days. For one-way journeys leaving from Seattle (SEA), the lowest amount paid during this period was just ₩180,100.
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 ₩303,200 and ₩1,765,200. 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 55ºF to 80ºF. 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 traveler'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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