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Cheap flights from Washington, D.C. Dulles Intl Airport to Helsinki from $300

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Helsinki departing on 10/18. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Helsinki

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
8:20 pm - 1:30 am
IAD
-
HEL
22h 10m
1 stop
Scandinavian Airlines Logo
6:10 am - 5:00 pm
HEL
-
IAD
17h 50m
1 stop
$365Scandinavian Airlines
Mon, Sep 21 - Wed, Oct 7
Scandinavian Airlines Logo
8:20 pm - 1:30 am
IAD
-
HEL
22h 10m
1 stop
Scandinavian Airlines Logo
7:15 am - 5:00 pm
HEL
-
IAD
16h 45m
2 stops
$370Scandinavian Airlines
Mon, Sep 21 - Wed, Oct 7
Icelandair Logo
7:40 pm - 1:00 pm
IAD
-
HEL
10h 20m
1 stop
Icelandair Logo
2:00 pm - 6:30 pm
HEL
-
IAD
11h 30m
1 stop
$461Icelandair
Sat, Jan 16 - Sun, Jan 24
Icelandair Logo
7:40 pm - 1:00 pm
IAD
-
HEL
10h 20m
1 stop
Icelandair Logo
2:00 pm - 6:30 pm
HEL
-
IAD
11h 30m
1 stop
$461Icelandair
Fri, Dec 4 - Sat, Dec 12
Multiple Airlines Logo
8:20 pm - 4:40 pm
IAD
-
HEL
13h 20m
2 stops
Multiple Airlines Logo
5:30 am - 5:00 pm
HEL
-
IAD
18h 30m
3 stops
$613Multiple Airlines
Mon, Sep 21 - Wed, Oct 7
Multiple Airlines Logo
8:20 pm - 4:40 pm
IAD
-
HEL
13h 20m
2 stops
Multiple Airlines Logo
5:30 am - 5:00 pm
HEL
-
IAD
18h 30m
3 stops
$662Multiple Airlines
Mon, Sep 21 - Wed, Oct 7
Lufthansa Logo
10:55 pm - 6:45 pm
IAD
-
HEL
12h 50m
1 stop
Lufthansa Logo
7:00 am - 3:55 pm
HEL
-
IAD
15h 55m
1 stop
$729Lufthansa
Fri, Nov 6 - Tue, Nov 10
Lufthansa Logo
10:55 pm - 6:45 pm
IAD
-
HEL
12h 50m
1 stop
Lufthansa Logo
7:05 am - 3:55 pm
HEL
-
IAD
15h 50m
1 stop
$748Lufthansa
Tue, Nov 10 - Sun, Nov 15
United Airlines Logo
5:35 pm - 6:45 pm
IAD
-
HEL
18h 10m
1 stop
United Airlines Logo
12:35 pm - 12:14 am
HEL
-
IAD
18h 39m
2 stops
$764United Airlines
Wed, Jan 27 - Sun, Jan 31
United Airlines Logo
10:44 pm - 11:50 am
IAD
-
HEL
30h 06m
2 stops
United Airlines Logo
12:35 pm - 7:34 am
HEL
-
IAD
25h 59m
2 stops
$769United Airlines
Sun, Dec 27 - Sat, Jan 16

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Scandinavian Airlines flights from Washington, D.C. Dulles Intl Airport to Helsinki

Our best Scandinavian Airlines deals on Washington, D.C. Dulles Intl Airport to Helsinki flight tickets
Scandinavian Airlines
Sep 21
IAD8:20 pmWashington, D.C. Dulles Intl
22h 10m
1 stop
HEL1:30 amHelsinki-Vantaa
Oct 7
HEL6:10 amHelsinki-Vantaa
17h 50m
1 stop
IAD5:00 pmWashington, D.C. Dulles Intl
$365
Scandinavian Airlines
Sep 21
IAD8:20 pmWashington, D.C. Dulles Intl
22h 10m
1 stop
HEL1:30 amHelsinki-Vantaa
Oct 7
HEL7:15 amHelsinki-Vantaa
16h 45m
2 stops
IAD5:00 pmWashington, D.C. Dulles Intl
$370
Scandinavian Airlines
Sep 21
IAD8:20 pmWashington, D.C. Dulles Intl
12h 25m
2 stops
HEL3:45 pmHelsinki-Vantaa
Oct 7
HEL7:15 amHelsinki-Vantaa
16h 45m
2 stops
IAD5:00 pmWashington, D.C. Dulles Intl
$379

Icelandair flights from Washington, D.C. Dulles Intl Airport to Helsinki

Our best Icelandair deals on Washington, D.C. Dulles Intl Airport to Helsinki flight tickets
Icelandair
Jan 15
IAD7:40 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
HEL1:00 pmHelsinki-Vantaa
Jan 23
HEL2:00 pmHelsinki-Vantaa
11h 30m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$461
Icelandair
Jan 15
IAD7:40 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
HEL1:00 pmHelsinki-Vantaa
Jan 23
HEL2:00 pmHelsinki-Vantaa
11h 30m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$463
Icelandair
Jan 27
IAD7:40 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
HEL1:00 pmHelsinki-Vantaa
Jan 31
HEL2:00 pmHelsinki-Vantaa
11h 30m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$492

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 4, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Helsinki that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 9/21

8:20 pm-1:30 am

1 stop22h 10m

Helsinki-Vantaa

Wed 10/7

6:10 am-5:00 pm

1 stop17h 50m

$365

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 9/21

8:20 pm-1:30 am

1 stop22h 10m

Helsinki-Vantaa

Wed 10/7

7:15 am-5:00 pm

2 stops16h 45m

$370
Quickest round-trip

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sat 1/16

7:40 pm-1:00 pm

1 stop10h 20m

Helsinki-Vantaa

Sun 1/24

2:00 pm-6:30 pm

1 stop11h 30m

$461

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Fri 12/4

7:40 pm-1:00 pm

1 stop10h 20m

Helsinki-Vantaa

Sat 12/12

2:00 pm-6:30 pm

1 stop11h 30m

$461

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 9/21

8:20 pm-4:40 pm

2 stops13h 20m

Helsinki-Vantaa

Wed 10/7

5:30 am-5:00 pm

3 stops18h 30m

$613

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 9/21

8:20 pm-4:40 pm

2 stops13h 20m

Helsinki-Vantaa

Wed 10/7

5:30 am-5:00 pm

3 stops18h 30m

$662

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Fri 11/6

10:55 pm-6:45 pm

1 stop12h 50m

Helsinki-Vantaa

Tue 11/10

7:00 am-3:55 pm

1 stop15h 55m

$729

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 11/10

10:55 pm-6:45 pm

1 stop12h 50m

Helsinki-Vantaa

Sun 11/15

7:05 am-3:55 pm

1 stop15h 50m

$748

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 1/27

5:35 pm-6:45 pm

1 stop18h 10m

Helsinki-Vantaa

Sun 1/31

12:35 pm-12:14 am

2 stops18h 39m

$764

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 12/27

10:44 pm-11:50 am

2 stops30h 06m

Helsinki-Vantaa

Sat 1/16

12:35 pm-7:34 am

2 stops25h 59m

$769

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 Washington, D.C. Dulles Intl Airport 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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Helsinki?

Prices are currently low for flights on this route.

Typical prices usually range from $756 to $808.
The lowest price recently found on this route was $365.

What is the cheapest month to fly to Helsinki?

The month of October is, on average, the cheapest month to fly to Helsinki from Washington, D.C. Dulles Intl Airport, with most prices found around $406. If you aren’t able to travel during the month of October, then book flights to Helsinki from Washington, D.C. Dulles Intl Airport during January instead. Flights to Helsinki in January, while not as cheap as those in October, still average around $511.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Helsinki?

You are more likely to see cheaper flights to Helsinki from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around $681 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from Washington, D.C. Dulles Intl Airport for as low as $430 on momondo.

When to book flights from Washington, D.C. Dulles Intl Airport to Helsinki

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Helsinki according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Helsinki (IAD to HEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Helsinki

Fastest flight time

10h 20m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Helsinki takes 10h 20m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Helsinki. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Helsinki.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Helsinki

  • How far is Washington, D.C. Dulles Intl to Helsinki-Vantaa by plane?

    The distance between Washington, D.C. Dulles Intl and Helsinki-Vantaa is about 4312.7 mi. Flights usually cover this in 10h 20m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Helsinki-Vantaa Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Helsinki-Vantaa Airport refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Helsinki-Vantaa Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport 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, D.C. Dulles Intl Airport to Helsinki-Vantaa Airport.

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

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

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Helsinki?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Helsinki

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Helsinki with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $374Free CancellationRating
7.0
719 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $406Free CancellationRating
7.4
1,913 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $462Free CancellationRating
7.4
10,058 reviews
Search United Airlines flights
LufthansaPriceFrom $493Free CancellationRating
6.8
8,174 reviews
Search Lufthansa flights

Traveling to a place near Helsinki?

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Lahti
Kotka

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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, D.C. to Helsinki for you.

Can I find flights from Washington, D.C. to Helsinki with flexible booking policies on momondo?

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

How can momondo help me find flights from Washington, D.C. to Helsinki?

Once all potential Washington, D.C. to Helsinki flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Helsinki from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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