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Cheap flights from Helsinki to Washington from $445

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helsinki to Washington departing on 11/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Helsinki to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
7:40 pm - 10:56 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
37h 16m2 stops Istanbul Chicago O'Hare Intl
Turkish Airlines Logo
10:42 am - 11:10 amSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
38h 28m2 stops Chicago O'Hare Intl Istanbul
$758Turkish Airlines
Wed, Sep 23 - Wed, Sep 30
Multiple Airlines Logo
8:20 am - 10:56 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
48h 36m2 stops Istanbul Chicago O'Hare Intl
Multiple Airlines Logo
11:13 pm - 11:10 amSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
25h 57m2 stops Chicago O'Hare Intl Istanbul
$758Multiple Airlines
Thu, Sep 24 - Mon, Sep 28
Icelandair Logo
3:00 pm - 5:55 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
12h 55m1 stop Reykjavik Keflavik Intl
Icelandair Logo
7:00 pm - 2:00 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
33h 00m1 stop Reykjavik Keflavik Intl
$787Icelandair
Thu, Oct 8 - Wed, Oct 21
Multiple Airlines Logo
7:40 pm - 4:05 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
30h 25m2 stops Istanbul Chicago O'Hare Intl
Multiple Airlines Logo
10:42 am - 11:10 amSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
38h 28m2 stops Chicago O'Hare Intl Istanbul
$789Multiple Airlines
Wed, Sep 23 - Wed, Sep 30
Icelandair Logo
3:00 pm - 11:45 amHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
30h 45m1 stop Reykjavik Keflavik Intl
Icelandair Logo
7:00 pm - 2:00 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
33h 00m1 stop Reykjavik Keflavik Intl
$803Icelandair
Mon, Sep 7 - Mon, Sep 21
Scandinavian Airlines Logo
9:05 pm - 1:45 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
26h 40m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
3:55 pm - 6:45 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
16h 50m2 stops Kastrup Copenhagen Stockholm Arlanda
$804Scandinavian Airlines
Fri, Sep 25 - Fri, Oct 2
Turkish Airlines Logo
7:40 pm - 10:56 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
37h 16m2 stops Istanbul Chicago O'Hare Intl
Turkish Airlines Logo
7:15 pm - 11:10 amSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
29h 55m1 stop Istanbul
$804Turkish Airlines
Thu, Sep 24 - Mon, Sep 28
Multiple Airlines Logo
3:40 pm - 11:55 amHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
30h 15m2 stops Stockholm Arlanda Frankfurt am Main
Multiple Airlines Logo
8:00 am - 9:20 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
27h 20m3 stops Toronto Pearson Intl Brussels Bruxelles-National Stockholm Arlanda
$807Multiple Airlines
Mon, Sep 7 - Mon, Sep 21
Multiple Airlines Logo
9:05 pm - 8:40 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
33h 35m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
Multiple Airlines Logo
3:40 pm - 11:25 amSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
33h 45m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Stockholm Arlanda
$809Multiple Airlines
Fri, Sep 4 - Fri, Sep 18
Scandinavian Airlines Logo
9:05 pm - 1:45 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
26h 40m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
3:55 pm - 3:20 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
13h 25m1 stop Kastrup Copenhagen
$817Scandinavian Airlines
Fri, Sep 25 - Fri, Oct 2

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Icelandair flights from Helsinki to State of Washington

Our best Icelandair deals on Helsinki to State of Washington flight tickets
Icelandair
Oct 8
HEL3:00 pmHelsinki-Vantaa
12h 55m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
Oct 21
SEA7:00 pmSeattle/Tacoma Intl
33h 00m
1 stop
HEL2:00 pmHelsinki-Vantaa
$787
Icelandair
Sep 7
HEL3:00 pmHelsinki-Vantaa
30h 45m
1 stop
SEA11:45 amSeattle/Tacoma Intl
Sep 21
SEA7:00 pmSeattle/Tacoma Intl
33h 00m
1 stop
HEL2:00 pmHelsinki-Vantaa
$803
Icelandair
Oct 5
HEL11:55 pmHelsinki-Vantaa
47h 29m
2 stops
PDX1:24 pmPortland
Oct 14
PDX3:30 pmPortland
17h 10m
2 stops
HEL6:40 pmHelsinki-Vantaa
$867

Scandinavian Airlines flights from Helsinki to State of Washington

Our best Scandinavian Airlines deals on Helsinki to State of Washington flight tickets
Scandinavian Airlines
Sep 25
HEL9:05 pmHelsinki-Vantaa
26h 40m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
Oct 2
SEA3:55 pmSeattle/Tacoma Intl
13h 25m
1 stop
HEL3:20 pmHelsinki-Vantaa
$817
Scandinavian Airlines
Sep 26
HEL6:10 amHelsinki-Vantaa
17h 35m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
Oct 3
SEA3:55 pmSeattle/Tacoma Intl
23h 35m
1 stop
HEL1:30 amHelsinki-Vantaa
$837
Scandinavian Airlines
Sep 25
HEL7:15 amHelsinki-Vantaa
16h 30m
2 stops
SEA1:45 pmSeattle/Tacoma Intl
Oct 2
SEA3:55 pmSeattle/Tacoma Intl
16h 50m
2 stops
HEL6:45 pmHelsinki-Vantaa
$843

momondo Fare Finder

 
Customize your flight search to find flights from Helsinki to State of Washington 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 14, 2026.
Use the filters below to find and compare flights from Helsinki to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelsinkiSeattle

HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl

HELSEA

Helsinki-Vantaa

Wed 9/23

7:40 pm-10:56 pm

2 stops37h 16m

Seattle/Tacoma Intl

Wed 9/30

10:42 am-11:10 am

2 stops38h 28m

$758

HelsinkiSeattle

HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl

HELSEA

Helsinki-Vantaa

Thu 9/24

8:20 am-10:56 pm

2 stops48h 36m

Seattle/Tacoma Intl

Mon 9/28

11:13 pm-11:10 am

2 stops25h 57m

$758

HelsinkiSeattle

HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl

HELSEA

Helsinki-Vantaa

Thu 10/8

3:00 pm-5:55 pm

1 stop12h 55m

Seattle/Tacoma Intl

Wed 10/21

7:00 pm-2:00 pm

1 stop33h 00m

$787

HelsinkiSeattle

HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl

HELSEA

Helsinki-Vantaa

Wed 9/23

7:40 pm-4:05 pm

2 stops30h 25m

Seattle/Tacoma Intl

Wed 9/30

10:42 am-11:10 am

2 stops38h 28m

$789

HelsinkiSeattle

HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl

HELSEA

Helsinki-Vantaa

Mon 9/7

3:00 pm-11:45 am

1 stop30h 45m

Seattle/Tacoma Intl

Mon 9/21

7:00 pm-2:00 pm

1 stop33h 00m

$803

HelsinkiSeattle

HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl

HELSEA

Helsinki-Vantaa

Fri 9/25

9:05 pm-1:45 pm

1 stop26h 40m

Seattle/Tacoma Intl

Fri 10/2

3:55 pm-6:45 pm

2 stops16h 50m

$804

HelsinkiSeattle

HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl

HELSEA

Helsinki-Vantaa

Thu 9/24

7:40 pm-10:56 pm

2 stops37h 16m

Seattle/Tacoma Intl

Mon 9/28

7:15 pm-11:10 am

1 stop29h 55m

$804

HelsinkiSeattle

HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl

HELSEA

Helsinki-Vantaa

Mon 9/7

3:40 pm-11:55 am

2 stops30h 15m

Seattle/Tacoma Intl

Mon 9/21

8:00 am-9:20 pm

3 stops27h 20m

$807

HelsinkiSeattle

HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl

HELSEA

Helsinki-Vantaa

Fri 9/4

9:05 pm-8:40 pm

2 stops33h 35m

Seattle/Tacoma Intl

Fri 9/18

3:40 pm-11:25 am

3 stops33h 45m

$809
Quickest round-trip

HelsinkiSeattle

HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl

HELSEA

Helsinki-Vantaa

Fri 9/25

9:05 pm-1:45 pm

1 stop26h 40m

Seattle/Tacoma Intl

Fri 10/2

3:55 pm-3:20 pm

1 stop13h 25m

$817

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 Washington from

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

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 State of Washington?

The month of October is, on average, the cheapest month to fly to State of Washington from Helsinki, with most prices found around $810. If you aren’t able to travel to State of Washington during the month of October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $831.

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

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

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

You are more likely to see cheaper flights to State of Washington from Helsinki when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $945 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Helsinki for as low as $799 on momondo.

What cabin class options are available on Helsinki to State of Washington flights?

There is only 1 cabin class available to choose from on Helsinki to State of Washington 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 Helsinki to State of Washington flights?

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

Cheap Helsinki to State of Washington flight deals and tips

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

Fastest flight time

9h 40m

Direct flights

Tue and Sat

Airports in State of Washington

96 airports
The fastest flight from Helsinki to State of Washington takes 9h 40m
Direct flights go from Helsinki to State of Washington on Tuesday and Saturday. The only airline offering direct flights is Finnair.
There are 96 airports in State of Washington. From Helsinki there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

Frequently asked questions about flying from Helsinki to Washington

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

    Prices for flights from Helsinki-Vantaa Airport to Washington are refreshed on a daily basis.

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

    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 Helsinki-Vantaa Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The travel and health documents you'll need for your trip to Washington 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 Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Why use momondo?

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

It is quick and easy to find Helsinki to Washington flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington that suits you.

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

Yes. momondo allows you to filter the results for Helsinki to Washington flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Helsinki to Washington.

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

Yes. momondo can track prices for Helsinki to Washington 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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