What are the cheapest airlines flying from Washington, D.C. to Helsinki round-trip?

Cheapflights users have booked flights from Washington, D.C. to Helsinki round-trip from $463. Other airlines that can offer you cheap pricing are British Airways, from $474, and American Airlines, from $511. These flights start at 16% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Washington, D.C. to Helsinki one-way?

For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $370. Users have also found prices from $401 and $406 on Lufthansa and Air Canada, respectively.

What is the cheapest day to fly from Washington, D.C. to Helsinki?

Travelers seeking maximum savings on their Washington, D.C. to Helsinki flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Washington, D.C. to Helsinki?

When deciding which route to take from Washington, D.C. to Helsinki consider Washington, D.C. Dulles Intl - Helsinki-Vantaa, Baltimore/Washington - Helsinki-Vantaa or Washington, D.C. Reagan-National - Helsinki-Vantaa as they are the most popular.

What is the cheapest day to fly round-trip from Washington, D.C. to Helsinki?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 89% on the overall cost on flights from Washington, D.C. to Helsinki.

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

To save up to 54% on this flight, we recommend booking at least 43 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Washington, D.C. to Helsinki from $573 1-2 weeks out and tickets from $573 for flights departing within the next 72 hours.

What is the cheapest month to fly from Washington, D.C. to Helsinki?

November can be a great time to fly to Helsinki from Washington, D.C. with a flight ticket averaging about $557. Cheapflights users have found deals in the month of November for as cheap as $349. The most expensive prices can be found in the month of June.

What airport do you fly into for flights to Helsinki from Washington, D.C.?

If you book a flight to Helsinki from Washington, D.C., you will be flying to Helsinki-Vantaa, which is the city’s only airport. Helsinki-Vantaa (HEL) is located 10.6 mi from the center of Helsinki. There are 0 flights from Washington, D.C. to Helsinki-Vantaa per day from 9 different airlines.

Can I find deals for flights from Washington, D.C. to Helsinki that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Helsinki flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Helsinki?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Helsinki.

Can I find deals for business class flights from Washington, D.C. to Helsinki?

Yes. Cheapflights offers flight deals from Washington, D.C. to Helsinki by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$293+ Flights from Washington, D.C. to Helsinki

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Cheapflights Tip: The best prices from Washington, D.C. to Helsinki-Vantaa are usually found in November or February, booked 66 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Washington, D.C. to Helsinki

Round-trip from	$463 (Gotogate)
One-way from	$293 (Trip.com)
Popular in	June
Cheapest in	November
Average price	$841

From Washington, D.C. (WAS) to Helsinki-Vantaa

Search Deals

One-way flight from Washington, D.C. (WAS) to Helsinki-Vantaa

Search Deals

Highest demand for flights based on searches. 25% potential increase in price ($186 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Washington, D.C. to Helsinki

Cheapest flights from Washington, D.C. to Helsinki
Explore the most affordable flight options available from Washington, D.C. to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Fri 11/287:30 pmBWI - HEL

1 stop10h 30mIcelandair

Sat 12/62:00 pmHEL - BWI

1 stop11h 30mIcelandair

Deal found 6/11

$463

Fri 11/288:30 pmBWI - HEL

1 stop19h 35mBritish Airways

Fri 12/57:50 amHEL - BWI

1 stop17h 55mBritish Airways

Deal found 6/12

$474

Wed 10/11:35 pmBWI - HEL

1 stop14h 10mAmerican Airlines

Wed 10/812:35 pmHEL - BWI

1 stop16h 57mAmerican Airlines

Deal found 6/9

$511

Wed 12/33:30 pmBWI - HEL

2 stops17h 30mDelta

Mon 12/86:30 amHEL - BWI

2 stops19h 44mDelta

Deal found 6/10

$529

Wed 11/2611:10 pmIAD - HEL

1 stop12h 30mUnited Airlines

Sun 11/302:00 pmHEL - IAD

2 stops32h 54mUnited Airlines

Deal found 6/9

$537

Wed 9/245:00 pmDCA - HEL

2 stops16h 40mDelta

Tue 9/307:10 amHEL - DCA

2 stops17h 55mDelta

Deal found 6/9

$537

Tue 8/1210:05 pmIAD - HEL

1 stop29h 30mScandinavian Airlines

Mon 8/187:10 amHEL - IAD

2 stops19h 49mScandinavian Airlines

Deal found 6/10

$538

Wed 8/1310:20 pmIAD - HEL

1 stop13h 35mLufthansa

Wed 8/207:40 pmHEL - IAD

1 stop26h 40mLufthansa

Deal found 6/10

$540

Wed 11/2611:00 amDCA - HEL

2 stops19h 10mUnited Airlines

Sun 11/306:50 amHEL - DCA

2 stops33h 07mUnited Airlines

Deal found 6/9

$541

Sun 12/2810:05 pmIAD - HEL

2 stops37h 35mAir Canada

Tue 1/67:05 amHEL - IAD

2 stops39h 49mAir Canada

Deal found 6/10

$543

Fri 12/512:30 pmIAD - HEL

2 stops21h 55mDelta

Thu 12/116:30 amHEL - IAD

1 stop19h 45mDelta

Deal found 6/10

$545

Sat 7/56:15 amBWI - HEL

2 stops22h 40mUnited Airlines

Fri 8/226:10 amHEL - BWI

2 stops34h 45mUnited Airlines

Deal found 6/10

$545

Best flights from Washington, D.C. to Helsinki
Discover carefully curated flight deals from Washington, D.C. to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Fri 11/287:30 pmBWI - HEL

1 stop10h 30mIcelandair

Sat 12/62:00 pmHEL - BWI

1 stop11h 30mIcelandair

Deal found 6/11

$463

Fri 11/288:30 pmBWI - HEL

1 stop19h 35mBritish Airways

Fri 12/57:50 amHEL - BWI

1 stop17h 55mBritish Airways

Deal found 6/12

$474

Wed 10/11:35 pmBWI - HEL

1 stop14h 10mAmerican Airlines

Wed 10/812:35 pmHEL - BWI

1 stop16h 57mAmerican Airlines

Deal found 6/9

$511

Wed 12/33:30 pmBWI - HEL

2 stops17h 30mDelta

Mon 12/86:30 amHEL - BWI

2 stops19h 44mDelta

Deal found 6/10

$529

Wed 11/2611:10 pmIAD - HEL

1 stop12h 30mUnited Airlines

Sun 11/302:00 pmHEL - IAD

2 stops32h 54mUnited Airlines

Deal found 6/9

$537

Tue 8/1210:05 pmIAD - HEL

1 stop29h 30mScandinavian Airlines

Mon 8/187:10 amHEL - IAD

2 stops19h 49mScandinavian Airlines

Deal found 6/10

$538

Wed 8/1310:20 pmIAD - HEL

1 stop13h 35mLufthansa

Wed 8/207:40 pmHEL - IAD

1 stop26h 40mLufthansa

Deal found 6/10

$540

Fri 11/289:45 amIAD - HEL

3 stops21h 25mMultiple Airlines

Fri 12/54:05 pmHEL - IAD

2 stops33h 45mMultiple Airlines

Deal found 6/10

$551

Wed 11/266:00 amDCA - HEL

2 stops29h 40mAir Canada

Sun 11/302:00 pmHEL - DCA

2 stops49h 57mAir Canada

Deal found 6/9

$556

Mon 12/16:00 pmIAD - HEL

2 stops41h 40mAustrian Airlines

Sat 12/132:00 pmHEL - IAD

2 stops31h 40mAustrian Airlines

Deal found 6/10

$570

Sun 7/276:30 pmIAD - HEL

1 stop21h 50mAir France

Thu 8/76:40 amHEL - IAD

1 stop19h 35mAir France

Deal found 6/10

$686

Sat 7/55:35 pmIAD - HEL

2 stops16h 15mBrussels Airlines

Fri 8/226:10 amHEL - IAD

2 stops38h 20mBrussels Airlines

Deal found 6/10

$700

Last-minute flights from Washington, D.C. to Helsinki
Discover last-minute flight deals from Washington, D.C. to Helsinki. Data last updated June 12, 2025 and is based on user searches.

Tue 6/175:17 pmBWI - HEL

2 stops16h 23mDelta

Mon 6/301:55 pmHEL - BWI

2 stops15h 18mDelta

Deal found 6/10

$974

Tue 6/179:20 pmIAD - HEL

1 stop19h 00mAir France

Mon 6/306:40 amHEL - IAD

1 stop19h 35mAir France

Deal found 6/10

$1,132

Tue 6/176:10 pmIAD - HEL

1 stop11h 40mLufthansa

Mon 6/307:40 pmHEL - IAD

2 stops24h 50mLufthansa

Deal found 6/10

$1,434

Tue 6/173:30 pmIAD - HEL

2 stops14h 20mAir Canada

Mon 6/306:10 amHEL - IAD

2 stops22h 15mAir Canada

Deal found 6/11

$1,472

Wed 6/181:30 pmIAD - HEL

1 stop22h 10mTurkish Airlines

Sun 6/227:35 pmHEL - IAD

1 stop23h 10mTurkish Airlines

Deal found 6/12

$1,231

Sun 6/224:56 pmDCA - HEL

2 stops16h 44mDelta

Thu 7/36:40 amHEL - DCA

2 stops19h 16mDelta

Deal found 6/10

$954

Sun 6/226:30 pmIAD - HEL

1 stop15h 10mMultiple Airlines

Fri 7/47:00 amHEL - IAD

1 stop15h 35mMultiple Airlines

Deal found 6/10

$959

Sun 6/2211:15 pmIAD - HEL

2 stops27h 45mIcelandair

Thu 7/33:00 pmHEL - IAD

1 stop14h 10mIcelandair

Deal found 6/10

$968

Sun 6/227:34 pmIAD - HEL

2 stops15h 06mDelta

Fri 7/47:00 amHEL - IAD

1 stop15h 35mDelta

Deal found 6/10

$989

Sun 6/228:30 pmBWI - HEL

2 stops30h 00mMultiple Airlines

Thu 7/37:20 amHEL - BWI

1 stop19h 05mMultiple Airlines

Deal found 6/10

$1,214

Sun 6/223:59 pmDCA - HEL

2 stops15h 56mMultiple Airlines

Thu 7/34:25 pmHEL - DCA

1 stop12h 50mMultiple Airlines

Deal found 6/10

$1,270

Sun 6/229:20 pmBWI - HEL

1 stop16h 40mBritish Airways

Thu 7/311:05 amHEL - BWI

1 stop15h 30mBritish Airways

Deal found 6/10

$1,418

One-way flights from Washington, D.C. to Helsinki
Search for one-way flight options from Washington, D.C. to Helsinki. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Mon 8/188:30 pmIAD - HEL

2 stops14h 50mMultiple Airlines

Deal found 6/10

$293

Mon 8/188:30 pmBWI - HEL

2 stops17h 50mMultiple Airlines

Deal found 6/10

$309

Tue 9/28:30 pmIAD - HEL

1 stop10h 30mIcelandair

Deal found 6/10

$370

Wed 8/278:30 pmBWI - HEL

1 stop10h 30mIcelandair

Deal found 6/12

$382

Fri 8/156:10 pmIAD - HEL

1 stop23h 40mLufthansa

Deal found 6/9

$401

Fri 8/156:00 amDCA - HEL

2 stops29h 55mAir Canada

Deal found 6/9

$406

Thu 11/205:10 pmIAD - HEL

2 stops15h 50mDelta

Deal found 6/9

$408

Fri 8/156:35 amIAD - HEL

2 stops29h 20mUnited Airlines

Deal found 6/9

$411

Thu 11/205:35 pmIAD - HEL

1 stop12h 35mKLM

Deal found 6/9

$429

Thu 8/289:40 amDCA - HEL

2 stops24h 00mUnited Airlines

Deal found 6/10

$450

Tue 7/156:15 amBWI - HEL

2 stops27h 35mUnited Airlines

Deal found 6/12

$454

Thu 7/106:30 pmIAD - HEL

1 stop15h 10mAir France

Deal found 6/12

$458

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Helsinki that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreHelsinki

BWI - HEL

BWIHEL

Baltimore/Washington

Fri 11/28

7:30 pm-1:00 pm

1 stop10h 30m

Helsinki-Vantaa

Sat 12/6

2:00 pm-6:30 pm

1 stop11h 30m

$463

BaltimoreHelsinki

BWI - HEL

BWIHEL

Baltimore/Washington

Fri 11/28

8:30 pm-11:05 pm

1 stop19h 35m

Helsinki-Vantaa

Fri 12/5

7:50 am-6:45 pm

1 stop17h 55m

$474

BaltimoreHelsinki

BWI - HEL

BWIHEL

Baltimore/Washington

Wed 10/1

1:35 pm-10:45 am

1 stop14h 10m

Helsinki-Vantaa

Wed 10/8

12:35 pm-10:32 pm

1 stop16h 57m

$511

BaltimoreHelsinki

BWI - HEL

BWIHEL

Baltimore/Washington

Wed 12/3

3:30 pm-4:00 pm

2 stops17h 30m

Helsinki-Vantaa

Mon 12/8

6:30 am-7:14 pm

2 stops19h 44m

$529

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 11/26

11:10 pm-6:40 pm

1 stop12h 30m

Helsinki-Vantaa

Sun 11/30

2:00 pm-3:54 pm

2 stops32h 54m

$537

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 9/24

5:00 pm-4:40 pm

2 stops16h 40m

Helsinki-Vantaa

Tue 9/30

7:10 am-6:05 pm

2 stops17h 55m

$537

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 8/12

10:05 pm-10:35 am

1 stop29h 30m

Helsinki-Vantaa

Mon 8/18

7:10 am-7:59 pm

2 stops19h 49m

$538

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 8/13

10:20 pm-6:55 pm

1 stop13h 35m

Helsinki-Vantaa

Wed 8/20

7:40 pm-3:20 pm

1 stop26h 40m

$540

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 11/26

11:00 am-1:10 pm

2 stops19h 10m

Helsinki-Vantaa

Sun 11/30

6:50 am-8:57 am

2 stops33h 07m

$541

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Fri 12/5

12:30 pm-5:25 pm

2 stops21h 55m

Helsinki-Vantaa

Thu 12/11

6:30 am-7:15 pm

1 stop19h 45m

$545

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 56 results

...

Best time to book a flight from Washington, D.C. to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki from Washington, D.C. with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Helsinki

How far ahead should I book a flight from Washington, D.C. to Helsinki?

The best time to book flights from Washington, D.C. to Helsinki is 66 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Helsinki?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Helsinki (average of $444). Flying from Washington, D.C. to Helsinki in June is currently the most expensive (average of $1,081). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to HEL?

When flying from Washington, D.C. to Helsinki, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 27% versus a flight in the afternoon.

Rainfall in Helsinki by month

In terms of precipitation, rainfall in Helsinki ranges from 1.2 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Helsinki when rainfall is around 1.2 in.

Temperature in Helsinki by month

If weather is an important factor for your trip to Helsinki, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Helsinki

Read reviews from past customers who have flown Delta, KLM and Austrian Airlines from Washington, D.C. to Helsinki. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,946 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,358 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Austrian Airlines

7.6

Good

802 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Finnair

7.6

Good

1,290 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air France

7.5

Good

1,463 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly into for flights to Helsinki from Washington, D.C.?
If you book a flight to Helsinki from Washington, D.C., you will be flying to Helsinki-Vantaa, which is the city’s only airport. Helsinki-Vantaa (HEL) is located 10.6 mi from the center of Helsinki. There are 0 flights from Washington, D.C. to Helsinki-Vantaa per day from 9 different airlines.
What are the cheapest airlines flying from Washington, D.C. to Helsinki round-trip?
Cheapflights users have booked flights from Washington, D.C. to Helsinki round-trip from $463. Other airlines that can offer you cheap pricing are British Airways, from $474, and American Airlines, from $511. These flights start at 16% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Washington, D.C. to Helsinki one-way?
For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $370. Users have also found prices from $401 and $406 on Lufthansa and Air Canada, respectively.
What are the most popular routes from Washington, D.C. to Helsinki?
When deciding which route to take from Washington, D.C. to Helsinki consider Washington, D.C. Dulles Intl - Helsinki-Vantaa, Baltimore/Washington - Helsinki-Vantaa or Washington, D.C. Reagan-National - Helsinki-Vantaa as they are the most popular.
Can I find deals for flights from Washington, D.C. to Helsinki that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Helsinki flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Helsinki?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Helsinki.
Can I find deals for business class flights from Washington, D.C. to Helsinki?
Yes. Cheapflights offers flight deals from Washington, D.C. to Helsinki by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. to Helsinki?
Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Helsinki (average of $444). Flying from Washington, D.C. to Helsinki in June is currently the most expensive (average of $1,081). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Vantaa

Lahti

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Washington, D.C. to Helsinki

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Dulles Intl to Turku flights

Other flights to Helsinki

Top 9 airlines flying from Washington, D.C. to Helsinki

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$355	Average$499	FlexibilityNo cancel fee	On-time76%
Scandinavian Airlines	Cheapest$420	Average$668	FlexibilityNo cancel fee	On-time77%
American Airlines	Cheapest$430	Average$715	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$483	Average$787	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$486	Average$798	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$520	Average$732	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$527	Average$726	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$529	Average$1,050	FlexibilityNo cancel fee	On-time75%
Air France	Cheapest$534	Average$564	FlexibilityNo cancel fee	On-time77%

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$293+ Cheap flights from Washington, D.C. (WAS) to Helsinki (HEL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Helsinki with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. to Helsinki-Vantaa are usually found in November or February, booked 66 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Washington, D.C. to Helsinki

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington, D.C. to Helsinki

Cheapest flights from Washington, D.C. to HelsinkiExplore the most affordable flight options available from Washington, D.C. to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from Washington, D.C. to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Helsinki that are best for you.

Best time to book a flight from Washington, D.C. to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki from Washington, D.C. with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Helsinki

How far ahead should I book a flight from Washington, D.C. to Helsinki?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Helsinki. Price data was last updated on June 9, 2025.

What is the cheapest month to book a flight from Washington, D.C. to Helsinki?

What is the cheapest time of day to fly from WAS to HEL?

Find hourly flight availability from Washington, D.C. to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Rainfall in Helsinki by month

Plan your trip to Helsinki by taking into account the average rainfall totals by month.

Temperature in Helsinki by month

Plan your trip to Helsinki by taking into account the average temperature totals by month.

Reviews of airlines servicing Helsinki

Read reviews from past customers who have flown Delta, KLM and Austrian Airlines from Washington, D.C. to Helsinki. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Helsinki from Washington, D.C.?

What are the cheapest airlines flying from Washington, D.C. to Helsinki round-trip?

What are the cheapest airlines to fly from Washington, D.C. to Helsinki one-way?

What are the most popular routes from Washington, D.C. to Helsinki?

Can I find deals for flights from Washington, D.C. to Helsinki that include hotel bookings?

How can I find direct flights from Washington, D.C. to Helsinki?

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Cheapest flights from Washington, D.C. to Helsinki
Explore the most affordable flight options available from Washington, D.C. to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.