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Cheap flights from Washington to Oulu from $1,108

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Oulu departing on 12/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Turkish Airlines Logo
7:00 pm - 3:00 pmSEA-OUL
34h 00m2 stops
Turkish Airlines Logo
3:25 pm - 5:05 pmOUL-SEA
35h 40m2 stops
$1,108Turkish Airlines
Find Deal
Sun, Dec 28 - Mon, Jan 12
Turkish Airlines Logo
7:00 pm - 9:10 pmSEA-OUL
40h 10m2 stops
Turkish Airlines Logo
3:25 pm - 5:05 pmOUL-SEA
35h 40m2 stops
$1,177Turkish Airlines
Find Deal
Sat, Dec 27 - Mon, Jan 12
Multiple Airlines Logo
3:10 pm - 1:25 amSEA-OUL
24h 15m3 stops
Multiple Airlines Logo
9:00 pm - 10:16 pmOUL-SEA
35h 16m3 stops
$1,292Multiple Airlines
Find Deal
Sun, Dec 28 - Mon, Jan 12
Finnair Logo
1:48 pm - 8:30 pmSEA-OUL
21h 42m2 stops
Finnair Logo
6:35 pm - 11:08 pmOUL-SEA
38h 33m2 stops
$1,358Finnair
Find Deal
Sat, Mar 28 - Wed, Apr 1
Finnair Logo
6:00 am - 7:35 amPDX-OUL
39h 35m2 stops
Finnair Logo
6:20 pm - 5:40 pmOUL-PDX
57h 20m2 stops
$1,377Finnair
Find Deal
Wed, Apr 1 - Sun, Apr 5
Finnair Logo
6:00 am - 7:35 amPDX-OUL
39h 35m2 stops
Finnair Logo
6:20 pm - 5:40 pmOUL-PDX
57h 20m2 stops
$1,378Finnair
Find Deal
Wed, Apr 1 - Sun, Apr 5
Multiple Airlines Logo
1:07 am - 1:05 amSEA-OUL
37h 58m2 stops
Multiple Airlines Logo
9:40 pm - 8:45 pmOUL-SEA
33h 05m2 stops
$1,438Multiple Airlines
Find Deal
Fri, Dec 26 - Mon, Jan 12
Multiple Airlines Logo
6:50 pm - 4:20 pmSEA-OUL
35h 30m2 stops
Multiple Airlines Logo
5:00 pm - 5:00 pmOUL-SEA
34h 00m3 stops
$1,512Multiple Airlines
Find Deal
Sat, Dec 27 - Mon, Jan 12
Multiple Airlines Logo
10:05 am - 1:05 amSEA-OUL
29h 00m3 stops
Multiple Airlines Logo
9:40 pm - 5:00 pmOUL-SEA
29h 20m3 stops
$1,781Multiple Airlines
Find Deal
Sat, Dec 27 - Mon, Jan 12

Turkish Airlines flights from State of Washington to Oulu

Our best Turkish Airlines deals on State of Washington to Oulu flight tickets
Turkish Airlines
Dec 28
SEA7:00 pmSeattle/Tacoma Intl
34h 00m
2 stops
OUL3:00 pmOulu
Jan 12
OUL3:25 pmOulu
35h 40m
2 stops
SEA5:05 pmSeattle/Tacoma Intl
$1,108
Find similar
Turkish Airlines
Dec 27
SEA7:00 pmSeattle/Tacoma Intl
40h 10m
2 stops
OUL9:10 pmOulu
Jan 12
OUL3:25 pmOulu
35h 40m
2 stops
SEA5:05 pmSeattle/Tacoma Intl
$1,177
Find similar

Finnair flights from State of Washington to Oulu

Our best Finnair deals on State of Washington to Oulu flight tickets
Finnair
Mar 28
SEA1:48 pmSeattle/Tacoma Intl
24h 02m
2 stops
OUL10:50 pmOulu
Apr 1
OUL5:40 amOulu
27h 28m
2 stops
SEA11:08 pmSeattle/Tacoma Intl
$1,358
Find similar
Finnair
Apr 1
PDX6:00 amPortland
29h 30m
2 stops
OUL9:30 pmOulu
Apr 5
OUL6:20 pmOulu
57h 20m
2 stops
PDX5:40 pmPortland
$1,377
Find similar
Finnair
Apr 1
PDX6:00 amPortland
39h 35m
2 stops
OUL7:35 amOulu
Apr 5
OUL6:20 pmOulu
57h 20m
2 stops
PDX5:40 pmPortland
$1,378
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Oulu that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Washington to Oulu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Sun 12/28

7:00 pm-3:00 pm

2 stops34h 00m

Oulu

Mon 1/12

3:25 pm-5:05 pm

2 stops35h 40m

$1,108

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Sat 12/27

7:00 pm-9:10 pm

2 stops40h 10m

Oulu

Mon 1/12

3:25 pm-5:05 pm

2 stops35h 40m

$1,177

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Sun 12/28

3:10 pm-1:25 am

3 stops24h 15m

Oulu

Mon 1/12

9:00 pm-10:16 pm

3 stops35h 16m

$1,292

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Sat 3/28

1:48 pm-8:30 pm

2 stops21h 42m

Oulu

Wed 4/1

6:35 pm-11:08 pm

2 stops38h 33m

$1,358

PortlandOulu

PDX - OUL

PDXOUL

Portland

Wed 4/1

6:00 am-7:35 am

2 stops39h 35m

Oulu

Sun 4/5

6:20 pm-5:40 pm

2 stops57h 20m

$1,377

PortlandOulu

PDX - OUL

PDXOUL

Portland

Wed 4/1

6:00 am-7:35 am

2 stops39h 35m

Oulu

Sun 4/5

6:20 pm-5:40 pm

2 stops57h 20m

$1,378

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Fri 12/26

1:07 am-1:05 am

2 stops37h 58m

Oulu

Mon 1/12

9:40 pm-8:45 pm

2 stops33h 05m

$1,438

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Sat 12/27

6:50 pm-4:20 pm

2 stops35h 30m

Oulu

Mon 1/12

5:00 pm-5:00 pm

3 stops34h 00m

$1,512

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Sat 12/27

10:05 am-1:05 am

3 stops29h 00m

Oulu

Mon 1/12

9:40 pm-5:00 pm

3 stops29h 20m

$1,781

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap State of Washington to Oulu flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Oulu

Direct flights

None
There are no direct flights from State of Washington to Oulu. There are no popular flight routes from State of Washington to Oulu.
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  • When did momondo last update prices for flights from Washington to Oulu Airport?

    Prices for flights from Washington to Oulu Airport are updated daily.

  • How old do you have to be to fly from Washington to Oulu Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Oulu Airport.

  • What documentation or ID do you need to fly to Oulu Airport?

    The travel and health documents you'll need for your trip to Oulu Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oulu Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from State of Washington to Oulu?

    Confirm your travel details to search for the latest offers for flights from State of Washington to Oulu. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from State of Washington to Oulu with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Oulu?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to Oulu for you.

Can I find flights from Washington to Oulu with flexible booking policies on momondo?

All flight searches from Washington to Oulu on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington to Oulu?

momondo provides multiple filters to help you find the best flight to Oulu from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington to Oulu right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington to Oulu flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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