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Cheap flights from Washington, D.C. Dulles Intl Airport to Helsinki from $310

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 11/2. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Helsinki

Cheap round-trip flights

Icelandair Logo
7:40 pm - 12:55 pmIAD-HEL
10h 15m1 stop
Icelandair Logo
1:55 pm - 6:30 pmHEL-IAD
11h 35m1 stop
$373Icelandair
Find Deal
Mon, Nov 17 - Fri, Nov 21
Icelandair Logo
7:40 pm - 12:55 pmIAD-HEL
10h 15m1 stop
Icelandair Logo
1:55 pm - 6:30 pmHEL-IAD
11h 35m1 stop
$376Icelandair
Find Deal
Wed, Feb 11 - Wed, Feb 18
Scandinavian Airlines Logo
12:30 pm - 10:40 amIAD-HEL
15h 10m2 stops
Scandinavian Airlines Logo
6:15 am - 5:15 pmHEL-IAD
18h 00m1 stop
$404Scandinavian Airlines
Find Deal
Fri, Feb 13 - Thu, Feb 19
Scandinavian Airlines Logo
12:30 pm - 3:25 pmIAD-HEL
19h 55m2 stops
Scandinavian Airlines Logo
9:00 pm - 3:20 pmHEL-IAD
25h 20m1 stop
$410Scandinavian Airlines
Find Deal
Sun, Jan 11 - Sun, Jan 18
Lufthansa Logo
10:55 pm - 6:50 pmIAD-HEL
12h 55m1 stop
Lufthansa Logo
6:55 am - 3:50 pmHEL-IAD
15h 55m1 stop
$460Lufthansa
Find Deal
Thu, Nov 6 - Thu, Nov 13
Lufthansa Logo
10:55 pm - 6:50 pmIAD-HEL
12h 55m1 stop
Lufthansa Logo
6:55 am - 3:50 pmHEL-IAD
15h 55m1 stop
$463Lufthansa
Find Deal
Sat, Nov 8 - Sat, Nov 15
American Airlines Logo
6:05 am - 10:45 amIAD-HEL
21h 40m1 stop
American Airlines Logo
12:30 pm - 10:18 pmHEL-IAD
16h 48m1 stop
$482American Airlines
Find Deal
Thu, Jan 1 - Thu, Jan 22
American Airlines Logo
5:04 am - 9:45 amIAD-HEL
21h 41m1 stop
American Airlines Logo
12:30 pm - 11:07 pmHEL-IAD
17h 37m2 stops
$486American Airlines
Find Deal
Sun, Nov 2 - Wed, Nov 12
Delta Logo
6:50 pm - 4:25 pmIAD-HEL
14h 35m1 stop
Delta Logo
2:05 pm - 4:05 pmHEL-IAD
33h 00m1 stop
$487Delta
Find Deal
Fri, Dec 5 - Tue, Dec 9
Delta Logo
10:25 pm - 4:25 pmIAD-HEL
12h 00m1 stop
Delta Logo
2:05 pm - 11:31 amHEL-IAD
28h 26m2 stops
$491Delta
Find Deal
Thu, Oct 30 - Wed, Nov 12

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

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Helsinki flight tickets
Delta
Dec 5
IAD6:50 pmWashington, D.C. Dulles Intl
14h 35m
1 stop
HEL4:25 pmHelsinki-Vantaa
Dec 9
HEL2:05 pmHelsinki-Vantaa
33h 00m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$487
Find similar
Delta
Oct 30
IAD10:25 pmWashington, D.C. Dulles Intl
12h 00m
1 stop
HEL4:25 pmHelsinki-Vantaa
Nov 12
HEL2:05 pmHelsinki-Vantaa
28h 26m
2 stops
IAD11:31 amWashington, D.C. Dulles Intl
$491
Find similar
Delta
Nov 11
IAD5:03 pmWashington, D.C. Dulles Intl
16h 22m
2 stops
HEL4:25 pmHelsinki-Vantaa
Nov 21
HEL7:00 amHelsinki-Vantaa
16h 05m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$492
Find similar

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
Feb 13
IAD12:30 pmWashington, D.C. Dulles Intl
15h 10m
2 stops
HEL10:40 amHelsinki-Vantaa
Feb 19
HEL6:15 amHelsinki-Vantaa
18h 00m
1 stop
IAD5:15 pmWashington, D.C. Dulles Intl
$404
Find similar
Scandinavian Airlines
Jan 11
IAD12:30 pmWashington, D.C. Dulles Intl
19h 55m
2 stops
HEL3:25 pmHelsinki-Vantaa
Jan 18
HEL9:00 pmHelsinki-Vantaa
25h 20m
1 stop
IAD3:20 pmWashington, D.C. Dulles Intl
$410
Find similar
Scandinavian Airlines
Feb 13
IAD12:30 pmWashington, D.C. Dulles Intl
15h 10m
2 stops
HEL10:40 amHelsinki-Vantaa
Feb 19
HEL11:05 amHelsinki-Vantaa
13h 10m
2 stops
IAD5:15 pmWashington, D.C. Dulles Intl
$412
Find similar

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 September 24, 2025.
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

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 11/17

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Fri 11/21

1:55 pm-6:30 pm

1 stop11h 35m

$373

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 2/11

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Wed 2/18

1:55 pm-6:30 pm

1 stop11h 35m

$376

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Fri 2/13

12:30 pm-10:40 am

2 stops15h 10m

Helsinki-Vantaa

Thu 2/19

6:15 am-5:15 pm

1 stop18h 00m

$404

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 1/11

12:30 pm-3:25 pm

2 stops19h 55m

Helsinki-Vantaa

Sun 1/18

9:00 pm-3:20 pm

1 stop25h 20m

$410

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Thu 11/6

10:55 pm-6:50 pm

1 stop12h 55m

Helsinki-Vantaa

Thu 11/13

6:55 am-3:50 pm

1 stop15h 55m

$460

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sat 11/8

10:55 pm-6:50 pm

1 stop12h 55m

Helsinki-Vantaa

Sat 11/15

6:55 am-3:50 pm

1 stop15h 55m

$463

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Thu 1/1

6:05 am-10:45 am

1 stop21h 40m

Helsinki-Vantaa

Thu 1/22

12:30 pm-10:18 pm

1 stop16h 48m

$482

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 11/2

5:04 am-9:45 am

1 stop21h 41m

Helsinki-Vantaa

Wed 11/12

12:30 pm-11:07 pm

2 stops17h 37m

$486

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Fri 12/5

6:50 pm-4:25 pm

1 stop14h 35m

Helsinki-Vantaa

Tue 12/9

2:05 pm-4:05 pm

1 stop33h 00m

$487

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Thu 10/30

10:25 pm-4:25 pm

1 stop12h 00m

Helsinki-Vantaa

Wed 11/12

2:05 pm-11:31 am

2 stops28h 26m

$491

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 cheapest month to fly to Helsinki?

The month of January is, on average, the cheapest month to fly to Helsinki from Washington, D.C. Dulles Intl Airport, with most prices found around $415. If you aren’t able to travel during the month of January, then book flights to Helsinki from Washington, D.C. Dulles Intl Airport during March instead. Flights to Helsinki in March, while not as cheap as those in January, still average around $458.

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 Tuesday when prices can be found for as low as $364. This is often the case because there is less demand to fly during this day of the week. Flights from Washington, D.C. Dulles Intl Airport to Helsinki on a Wednesday will generally be more expensive and average around $692. 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 evening. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Helsinki in the evening for as low as $399. 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 $541 per ticket.

How far in advance should I book a flight 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 $581 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 $479 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

Direct flights

None
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.
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  • 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 15m, 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
545 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $420Free CancellationRating
7.4
1,492 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $482Free CancellationRating
6.8
7,424 reviews
Search Lufthansa flights
United AirlinesPriceFrom $516Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
British AirwaysPriceFrom $526Free CancellationRating
6.7
7,399 reviews
Search British Airways flights
DeltaPriceFrom $527Free CancellationRating
7.9
7,973 reviews
Search Delta flights
KLMPriceFrom $529Free CancellationRating
7.8
1,391 reviews
Search KLM flights

Traveling to a place near Helsinki?

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

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Why should I use momondo to find a flight deal from Washington, D.C. to Helsinki?

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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