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Cheap flights from Washington to Helsinki from $319

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 Helsinki departing on 10/5. 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

Scandinavian Airlines Logo
4:20 pm - 10:35 amSEA-HEL
32h 15m1 stop
Scandinavian Airlines Logo
4:05 pm - 2:00 pmHEL-SEA
31h 55m1 stop
$319Scandinavian Airlines
Find Deal
Sun, Oct 5 - Tue, Oct 21
Scandinavian Airlines Logo
4:20 pm - 11:35 pmSEA-HEL
21h 15m2 stops
Scandinavian Airlines Logo
9:00 pm - 2:00 pmHEL-SEA
27h 00m1 stop
$322Scandinavian Airlines
Find Deal
Sun, Oct 5 - Tue, Oct 21
Icelandair Logo
3:20 pm - 2:00 pmPDX-HEL
12h 40m1 stop
Icelandair Logo
1:55 pm - 5:00 pmHEL-PDX
13h 05m1 stop
$364Icelandair
Find Deal
Fri, Oct 24 - Sun, Nov 2
Icelandair Logo
3:20 pm - 2:00 pmPDX-HEL
12h 40m1 stop
Icelandair Logo
1:55 pm - 5:00 pmHEL-PDX
13h 05m1 stop
$366Icelandair
Find Deal
Fri, Oct 24 - Sun, Nov 2
Finnair Logo
8:45 am - 10:45 amPDX-HEL
16h 00m1 stop
Finnair Logo
12:35 pm - 7:43 pmHEL-PDX
17h 08m1 stop
$482Finnair
Find Deal
Tue, Oct 14 - Tue, Oct 21
American Airlines Logo
7:39 am - 11:05 amPDX-HEL
17h 26m1 stop
American Airlines Logo
12:35 pm - 7:43 pmHEL-PDX
17h 08m1 stop
$483American Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 15
American Airlines Logo
7:40 am - 10:45 amPDX-HEL
17h 05m1 stop
American Airlines Logo
12:30 pm - 11:11 pmHEL-PDX
20h 41m2 stops
$486American Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 17
Air Canada Logo
6:15 am - 4:40 pmPDX-HEL
24h 25m2 stops
Air Canada Logo
6:50 am - 9:15 amHEL-PDX
36h 25m2 stops
$506Air Canada
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Wed, Sep 10 - Wed, Nov 19
Air Canada Logo
3:25 pm - 6:55 pmPDX-HEL
17h 30m2 stops
Air Canada Logo
6:10 am - 2:46 pmHEL-PDX
18h 36m2 stops
$552Air Canada
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Wed, Oct 1 - Wed, Oct 15
Finnair Logo
9:00 am - 10:45 amPDX-HEL
15h 45m1 stop
Finnair Logo
12:30 pm - 7:14 pmHEL-PDX
16h 44m1 stop
$573Finnair
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Wed, Sep 10 - Wed, Nov 19

United Airlines flights from State of Washington to Helsinki

Our best United Airlines deals on State of Washington to Helsinki flight tickets
United Airlines
Dec 2
PDX4:02 pmPortland
16h 38m
2 stops
HEL6:40 pmHelsinki-Vantaa
Dec 17
HEL6:50 amHelsinki-Vantaa
27h 54m
2 stops
PDX12:44 amPortland
$517
Find similar
United Airlines
Nov 30
PDX9:45 pmPortland
34h 55m
2 stops
HEL6:40 pmHelsinki-Vantaa
Dec 16
HEL7:05 amHelsinki-Vantaa
37h 58m
3 stops
PDX11:03 amPortland
$527
Find similar
United Airlines
Nov 18
PDX7:00 amPortland
25h 40m
3 stops
HEL6:40 pmHelsinki-Vantaa
Nov 24
HEL1:55 pmHelsinki-Vantaa
44h 50m
2 stops
PDX12:45 amPortland
$536
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KLM flights from State of Washington to Helsinki

Our best KLM deals on State of Washington to Helsinki flight tickets
KLM
Aug 12
PDX1:46 pmPortland
17h 54m
2 stops
HEL5:40 pmHelsinki-Vantaa
Aug 19
HEL6:25 pmHelsinki-Vantaa
26h 55m
1 stop
PDX11:20 amPortland
$1,240
Find similar
KLM
Aug 14
PDX1:46 pmPortland
17h 54m
2 stops
HEL5:40 pmHelsinki-Vantaa
Aug 23
HEL1:55 pmHelsinki-Vantaa
31h 05m
1 stop
PDX11:00 amPortland
$1,370
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momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Helsinki 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 August 11, 2025.
Use the filters below to find and compare flights from Washington to Helsinki that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Sun 10/5

4:20 pm-10:35 am

1 stop32h 15m

Helsinki-Vantaa

Tue 10/21

4:05 pm-2:00 pm

1 stop31h 55m

$319

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Sun 10/5

4:20 pm-11:35 pm

2 stops21h 15m

Helsinki-Vantaa

Tue 10/21

9:00 pm-2:00 pm

1 stop27h 00m

$322

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Fri 10/24

3:20 pm-2:00 pm

1 stop12h 40m

Helsinki-Vantaa

Sun 11/2

1:55 pm-5:00 pm

1 stop13h 05m

$364

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Fri 10/24

3:20 pm-2:00 pm

1 stop12h 40m

Helsinki-Vantaa

Sun 11/2

1:55 pm-5:00 pm

1 stop13h 05m

$366

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Tue 10/14

8:45 am-10:45 am

1 stop16h 00m

Helsinki-Vantaa

Tue 10/21

12:35 pm-7:43 pm

1 stop17h 08m

$482

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Wed 10/1

7:39 am-11:05 am

1 stop17h 26m

Helsinki-Vantaa

Wed 10/15

12:35 pm-7:43 pm

1 stop17h 08m

$483

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Tue 12/2

7:40 am-10:45 am

1 stop17h 05m

Helsinki-Vantaa

Wed 12/17

12:30 pm-11:11 pm

2 stops20h 41m

$486

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Wed 9/10

6:15 am-4:40 pm

2 stops24h 25m

Helsinki-Vantaa

Wed 11/19

6:50 am-9:15 am

2 stops36h 25m

$506

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Wed 10/1

3:25 pm-6:55 pm

2 stops17h 30m

Helsinki-Vantaa

Wed 10/15

6:10 am-2:46 pm

2 stops18h 36m

$552

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Wed 9/10

9:00 am-10:45 am

1 stop15h 45m

Helsinki-Vantaa

Wed 11/19

12:30 pm-7:14 pm

1 stop16h 44m

$573

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Helsinki from

How to get the cheapest flight ticket from State of Washington to Helsinki

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Helsinki?

The month of January is, on average, the cheapest month to fly to Helsinki from State of Washington, with most prices found around $528. If you aren’t able to travel during the month of January, then book flights to Helsinki from State of Washington during October instead. Flights to Helsinki in October, while not as cheap as those in January, still average around $558.

What is the cheapest day to depart on your flight to Helsinki?

The cheapest day to depart on your flight to Helsinki is on a Sunday when prices can be found for as low as $914. This is often the case because there is less demand to fly during this day of the week. Flights from State of Washington to Helsinki on a Friday will generally be more expensive and average around $1,086. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Helsinki?

According to our data, the cheapest time of day to fly to Helsinki is in the morning. momondo users have found flights departing from State of Washington to Helsinki in the morning for as low as $788. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Helsinki, so prices are often more expensive at around $984 per ticket.

What is the cheapest Washington to Helsinki-Vantaa flight route?

Fly from Seattle/Tacoma Intl to Helsinki-Vantaa for the best Washington - Helsinki-Vantaa flight prices

How far in advance should I book a flight to Helsinki?

You are more likely to see cheaper flights to Helsinki from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around $832 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from State of Washington for as low as $620 on momondo.

What cabin class options are available on Washington to Helsinki-Vantaa flights?

There are 3 cabin classes available to choose from on Washington to Helsinki-Vantaa flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on State of Washington to Helsinki flights?

No. A direct flight is the cheapest option for a flight between State of Washington to Helsinki.

Cheap State of Washington to Helsinki flight deals and tips

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

Best Price Found

$364

Fastest flight time

9h 30m

Direct flights

Fri

Airports in Helsinki

1 airport
The best one-way flight to Helsinki from State of Washington in the past 72 hours is $364. The best round-trip flight deal from State of Washington to Helsinki found on momondo in the last 72 hours is $319.
The fastest flight from State of Washington to Helsinki takes 9h 30m
Direct flights go from State of Washington to Helsinki on Friday. The only airline offering direct flights is Iberia.
There is 1 airport near Helsinki: Helsinki-Vantaa (HEL)
Search flight deals

  • When did momondo last update prices for flights from Washington to Helsinki-Vantaa Airport?

    Prices for flights from Washington to Helsinki-Vantaa Airport were last updated today.

  • How many operators does momondo search for flights from Washington to Helsinki-Vantaa Airport?

  • How old do you have to be to fly from Washington to Helsinki-Vantaa Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Helsinki-Vantaa Airport.

  • What documentation or ID do you need to fly to Helsinki-Vantaa Airport?

    The necessary travel and health documents for your Helsinki-Vantaa Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from State of Washington to Helsinki?

Best airlines flying from State of Washington to Helsinki

Compare and see reviews for airlines that fly from State of Washington to Helsinki with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $322Free CancellationRating
7.4
1,466 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $426Free CancellationRating
7.0
526 reviews
Search Icelandair flights
FinnairPriceFrom $558Free CancellationRating
7.6
1,321 reviews
Search Finnair flights
British AirwaysPriceFrom $569Free CancellationRating
6.6
7,261 reviews
Search British Airways flights
LufthansaPriceFrom $582Free CancellationRating
6.8
7,302 reviews
Search Lufthansa flights
United AirlinesPriceFrom $583Free CancellationRating
7.4
8,920 reviews
Search United Airlines flights
American AirlinesPriceFrom $601Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Espoo
Kotka
Lahti

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to Helsinki. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Helsinki from Washington with this policy.

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

momondo provides multiple filters to help you find the best flight to Helsinki 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 Helsinki right now. Can momondo alert me if prices change?

Price alerts on flights to Helsinki from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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