How long is the flight from State of Washington to Oulu?

Departing from State of Washington to Oulu will take you 45h 25m. The distance between State of Washington and Oulu is about 4605 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Oulu ranges from 0.4 - 2.4 inches per month. August is typically the wettest month, when rainfall can reach 2.4 in. April is typically the driest time to visit Oulu when rainfall is around 0.4 in.

If weather is an important factor for your trip to Oulu, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 F).

What is the cheapest time of day to fly from WA to OUL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Oulu as you normally would.

What airport do you fly into for flights to Oulu from Washington?

Most people fly into Oulu (OUL) if they book a flight to Oulu from Washington. Oulu is conveniently located just 6.5 mi from Oulu’s city center.

Can I find deals for flights from Washington to Oulu that include hotel bookings?

Yes. In addition to deals on Washington to Oulu flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington to Oulu?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Oulu.

Can I find deals for business class flights from Washington to Oulu?

Yes. Cheapflights offers flight deals from Washington to Oulu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$855+ Flights from Washington to Oulu

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Cheap flight deals from Washington to Oulu

Round-trip from	$855 (Finnair)

From Washington to Oulu

Search Deals

Find flight deals from Washington to Oulu

Cheapest flights from Washington to Oulu
Explore the most affordable flight options available from Washington to Oulu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 11, 2026.

Thu 2/196:25 amPDX - OUL

2 stops45h 25mFinnair

Mon 2/235:55 pmOUL - PDX

2 stops35h 21mFinnair

Deal found 1/8

$855

Mon 2/97:00 pmSEA - OUL

2 stops58h 00mTurkish Airlines

Fri 2/138:55 amOUL - SEA

2 stops42h 10mTurkish Airlines

Deal found 1/11

$1,202

Fri 1/231:35 pmSEA - OUL

2 stops17h 50mFinnair

Sun 1/2510:25 pmOUL - SEA

2 stops30h 53mFinnair

Deal found 1/9

$1,454

Mon 2/92:00 pmSEA - OUL

3 stops25h 05mMultiple Airlines

Fri 2/1310:55 amOUL - SEA

3 stops35h 15mMultiple Airlines

Deal found 1/10

$2,572

Best flights from Washington to Oulu
Discover carefully curated flight deals from Washington to Oulu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 11, 2026.

Thu 2/196:25 amPDX - OUL

2 stops45h 25mFinnair

Mon 2/235:55 pmOUL - PDX

2 stops35h 21mFinnair

Deal found 1/8

$855

Mon 2/97:00 pmSEA - OUL

2 stops58h 00mTurkish Airlines

Fri 2/138:55 amOUL - SEA

2 stops42h 10mTurkish Airlines

Deal found 1/11

$1,202

Mon 2/92:00 pmSEA - OUL

3 stops25h 05mMultiple Airlines

Fri 2/1310:55 amOUL - SEA

3 stops35h 15mMultiple Airlines

Deal found 1/10

$2,572

Fri 1/231:35 pmSEA - OUL

2 stops17h 50mFinnair

Sun 1/2510:25 pmOUL - SEA

2 stops30h 53mFinnair

Deal found 1/9

$1,454

Last-minute flights from Washington to Oulu
Discover last-minute flight deals from Washington to Oulu. Data last updated January 11, 2026 and is based on user searches.

Fri 1/231:35 pmSEA - OUL

2 stops17h 50mFinnair

Sun 1/2510:25 pmOUL - SEA

2 stops30h 53mFinnair

Deal found 1/9

$1,454

Mon 2/97:00 pmSEA - OUL

2 stops58h 00mTurkish Airlines

Fri 2/138:55 amOUL - SEA

2 stops42h 10mTurkish Airlines

Deal found 1/11

$1,202

Mon 2/92:00 pmSEA - OUL

3 stops25h 05mMultiple Airlines

Fri 2/1310:55 amOUL - SEA

3 stops35h 15mMultiple Airlines

Deal found 1/10

$2,572

Thu 2/196:25 amPDX - OUL

2 stops45h 25mFinnair

Mon 2/235:55 pmOUL - PDX

2 stops35h 21mFinnair

Deal found 1/8

$855

Fly from

Fly to

Route

Depart

Return

Price

PortlandOulu

PDX - OUL

PDXOUL

Portland

Thu 2/19

6:25 am-1:50 pm

2 stops45h 25m

Oulu

Mon 2/23

5:55 pm-7:16 pm

2 stops35h 21m

$855

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Mon 2/9

7:00 pm-3:00 pm

2 stops58h 00m

Oulu

Fri 2/13

8:55 am-5:05 pm

2 stops42h 10m

$1,202

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Fri 1/23

1:35 pm-5:25 pm

2 stops17h 50m

Oulu

Sun 1/25

10:25 pm-7:18 pm

2 stops30h 53m

$1,454

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Mon 2/9

2:00 pm-1:05 am

3 stops25h 05m

Oulu

Fri 2/13

10:55 am-12:10 pm

3 stops35h 15m

$2,572

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Best time to book a flight from Washington to Oulu

Have a flexible travel schedule? Discover the best time to fly to Oulu from Washington with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Oulu

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to Oulu from Washington?
Most people fly into Oulu (OUL) if they book a flight to Oulu from Washington. Oulu is conveniently located just 6.5 mi from Oulu’s city center.
How long is the flight from State of Washington to Oulu?
Departing from State of Washington to Oulu will take you 45h 25m. The distance between State of Washington and Oulu is about 4605 mi. This flight may include one or multiple stops.
Can I find deals for flights from Washington to Oulu that include hotel bookings?
Yes. In addition to deals on Washington to Oulu flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to Oulu?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Oulu.
Can I find deals for business class flights from Washington to Oulu?
Yes. Cheapflights offers flight deals from Washington to Oulu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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$855+ Cheap flights from Washington to Oulu (OUL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington to Oulu with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Washington to Oulu

Keep the following information in mind while searching for Washington to Oulu flight deals. Data was last updated January 11, 2026.

Round-trip from

Find flight deals from Washington to Oulu

Cheapest flights from Washington to OuluExplore the most affordable flight options available from Washington to Oulu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 11, 2026.

Explore the most affordable flight options available from Washington to Oulu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 11, 2026.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to Oulu that are best for you.

Best time to book a flight from Washington to Oulu

Have a flexible travel schedule? Discover the best time to fly to Oulu from Washington with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington to Oulu

Related info for your journey

Find useful and relevant information for your journey from Washington to Oulu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Oulu from Washington?

How long is the flight from State of Washington to Oulu?

Can I find deals for flights from Washington to Oulu that include hotel bookings?

How can I find direct flights from Washington to Oulu?

Can I find deals for business class flights from Washington to Oulu?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Oulu

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Cheapest flights from Washington to Oulu
Explore the most affordable flight options available from Washington to Oulu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 11, 2026.