$284+ Cheap flights from Dulles Intl (IAD) 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — HEL
Oct 3 — Oct 101
Round-trip
1 adult, Economy
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Find cheap flights from Dulles Intl to Helsinki with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Dulles Intl to HelsinkiExplore the most affordable flight options available from Dulles Intl to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2026.
Explore the most affordable flight options available from Dulles Intl to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2026.
This Ticket deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:30 pm -
1 stop11h 55m
Tue 11/109:00 pm -
1 stop27h 15m
Deal found 8/31![Scandinavian Airlines logo]()
$355
This Ticket deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:20 pm -
1 stop22h 10m
Wed 10/79:05 pm -
1 stop26h 55m
Deal found 8/31![Scandinavian Airlines logo]()
$358
This oojo deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:30 pm -
1 stop11h 55m
Thu 11/127:00 am -
2 stops17h 15m
Deal found 9/1![Scandinavian Airlines logo]()
$377
This oojo deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:20 pm -
1 stop22h 10m
Thu 9/246:10 am -
1 stop17h 50m
Deal found 9/1![Scandinavian Airlines logo]()
$378
This Booking.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:20 pm -
1 stop22h 10m
Tue 10/279:00 pm -
1 stop27h 15m
Deal found 8/30![Scandinavian Airlines logo]()
$380
This oojo deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:20 pm -
1 stop12h 00m
Mon 10/1911:05 am -
2 stops12h 55m
Deal found 9/1![Scandinavian Airlines logo]()
$381
This oojo deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:30 pm -
2 stops13h 05m
Mon 11/911:05 am -
2 stops13h 10m
Deal found 8/31![Scandinavian Airlines logo]()
$382
This oojo deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:20 pm -
1 stop12h 00m
Tue 10/209:15 pm -
2 stops50h 45m
Deal found 8/31![Scandinavian Airlines logo]()
$383
This oojo deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:20 pm -
2 stops13h 25m
Sat 10/177:15 am -
2 stops16h 45m
Deal found 8/30![Scandinavian Airlines logo]()
$384
This oojo deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:20 pm -
1 stop22h 10m
Sat 10/316:15 am -
1 stop19h 35m
Deal found 8/30![Scandinavian Airlines logo]()
$385
Best flights from Dulles Intl to HelsinkiDiscover carefully curated flight deals from Dulles Intl to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.
Discover carefully curated flight deals from Dulles Intl to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/168:30 pm -
1 stop22h 05m
Fri 11/204:05 pm -
1 stop33h 45m
Deal found 9/2![Scandinavian Airlines logo]()
$482
This Scandinavian Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:30 pm -
2 stops20h 20m
Sun 11/156:10 pm -
2 stops30h 05m
Deal found 9/2![Scandinavian Airlines logo]()
$482
This Scandinavian Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/212:30 pm -
2 stops19h 55m
Tue 2/163:30 pm -
2 stops32h 45m
Deal found 9/2![Scandinavian Airlines logo]()
$530
This Scandinavian Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:20 pm -
1 stop22h 10m
Thu 10/86:10 am -
1 stop17h 50m
Deal found 8/29![Scandinavian Airlines logo]()
$532
This Scandinavian Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2112:30 pm -
3 stops18h 00m
Mon 3/17:00 am -
2 stops17h 15m
Deal found 8/31![Scandinavian Airlines logo]()
$537
This Scandinavian Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:30 pm -
3 stops17h 25m
Wed 10/219:15 pm -
2 stops26h 45m
Deal found 9/1![Scandinavian Airlines logo]()
$592
This Kiwi.com deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:30 pm -
2 stops24h 55m
Sun 11/14:05 pm -
1 stop32h 10m
Deal found 9/2![Scandinavian Airlines logo]()
$603
This Scandinavian Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:20 pm -
2 stops15h 45m
Tue 10/209:15 pm -
3 stops45h 35m
Deal found 8/29![Scandinavian Airlines logo]()
$700
This Scandinavian Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:20 pm -
1 stop12h 00m
Fri 10/911:05 am -
2 stops12h 55m
Deal found 8/29![Scandinavian Airlines logo]()
$721
Last-minute flights from Dulles Intl to HelsinkiDiscover last-minute flight deals from Dulles Intl to Helsinki. Data last updated September 3, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Helsinki. Data last updated September 3, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:20 pm -
1 stop22h 10m
Thu 9/246:10 am -
1 stop17h 50m
Deal found 9/1![Scandinavian Airlines logo]()
$378
This Ticket deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:20 pm -
1 stop22h 10m
Wed 10/79:05 pm -
1 stop26h 55m
Deal found 8/31![Scandinavian Airlines logo]()
$358
This oojo deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:20 pm -
1 stop12h 00m
Mon 10/1911:05 am -
2 stops12h 55m
Deal found 9/1![Scandinavian Airlines logo]()
$381
This oojo deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:20 pm -
2 stops12h 25m
Tue 10/2711:05 am -
2 stops37h 10m
Deal found 8/30![Scandinavian Airlines logo]()
$382
This oojo deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:20 pm -
1 stop12h 00m
Tue 10/209:15 pm -
2 stops50h 45m
Deal found 8/31![Scandinavian Airlines logo]()
$383
This oojo deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:20 pm -
2 stops13h 25m
Sat 10/177:15 am -
2 stops16h 45m
Deal found 8/30![Scandinavian Airlines logo]()
$384
This Booking.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:20 pm -
1 stop22h 10m
Tue 10/279:00 pm -
1 stop27h 15m
Deal found 8/30![Scandinavian Airlines logo]()
$380
This oojo deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:20 pm -
1 stop22h 10m
Sat 10/316:15 am -
1 stop19h 35m
Deal found 8/30![Scandinavian Airlines logo]()
$385
This Ticket deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:30 pm -
1 stop11h 55m
Tue 11/109:00 pm -
1 stop27h 15m
Deal found 8/31![Scandinavian Airlines logo]()
$355
This oojo deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:30 pm -
1 stop11h 55m
Thu 11/127:00 am -
2 stops17h 15m
Deal found 9/1![Scandinavian Airlines logo]()
$377
One-way flights from Dulles Intl to HelsinkiSearch for one-way flight options from Dulles Intl to Helsinki. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.
Search for one-way flight options from Dulles Intl to Helsinki. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.
This Mytrip deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:40 pm -
1 stop10h 20m
Deal found 9/1![Icelandair logo]()
$284
This Mytrip deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/117:40 pm -
1 stop10h 20m
Deal found 8/31![Icelandair logo]()
$285
This oojo deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:40 pm -
1 stop10h 20m
Deal found 8/30![Icelandair logo]()
$288
This Mytrip deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:40 pm -
1 stop10h 20m
Deal found 8/29![Icelandair logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:30 pm -
3 stops39h 25m
Deal found 9/1![Multiple Airlines logo]()
$335
This Justfly.com deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:30 pm -
1 stop10h 30m
Deal found 8/31![Icelandair logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:40 pm -
3 stops19h 45m
Deal found 9/1![Multiple Airlines logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:20 pm -
2 stops27h 00m
Deal found 8/30![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:40 pm -
2 stops22h 55m
Deal found 8/29![Multiple Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:40 pm -
2 stops12h 45m
Deal found 8/29![Multiple Airlines logo]()
$360
This Mytrip deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/117:40 pm -
2 stops22h 55m
Deal found 8/31![Multiple Airlines logo]()
$366
Find flight deals from Dulles Intl to Helsinki
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Helsinki (HEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $355 (Ticket) |
One-way from | $284 (Mytrip) |
Popular in | June |
Cheapest in | October |
Average price | $821 |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl 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, Cheapflights users made 7,457,451 searches. Data last updated September 3, 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
Cheapest round-trip
Washington, D.C.Helsinki
IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa
IADHEL
Washington, D.C. Dulles Intl
Mon 11/16
8:30 pm-1:35 am
1 stop22h 05m
Helsinki-Vantaa
Fri 11/20
4:05 pm-6:50 pm
1 stop33h 45m
$482
Washington, D.C.Helsinki
IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa
IADHEL
Washington, D.C. Dulles Intl
Wed 11/11
8:30 pm-11:50 pm
2 stops20h 20m
Helsinki-Vantaa
Sun 11/15
6:10 pm-5:15 pm
2 stops30h 05m
$482
Washington, D.C.Helsinki
IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa
IADHEL
Washington, D.C. Dulles Intl
Tue 2/2
12:30 pm-3:25 pm
2 stops19h 55m
Helsinki-Vantaa
Tue 2/16
3:30 pm-5:15 pm
2 stops32h 45m
$530
Washington, D.C.Helsinki
IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa
IADHEL
Washington, D.C. Dulles Intl
Thu 10/1
8:20 pm-1:30 am
1 stop22h 10m
Helsinki-Vantaa
Thu 10/8
6:10 am-5:00 pm
1 stop17h 50m
$532
Washington, D.C.Helsinki
IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa
IADHEL
Washington, D.C. Dulles Intl
Sun 2/21
12:30 pm-1:30 pm
3 stops18h 00m
Helsinki-Vantaa
Mon 3/1
7:00 am-5:15 pm
2 stops17h 15m
$537
Washington, D.C.Helsinki
IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa
IADHEL
Washington, D.C. Dulles Intl
Tue 10/6
12:30 pm-12:55 pm
3 stops17h 25m
Helsinki-Vantaa
Wed 10/21
9:15 pm-5:00 pm
2 stops26h 45m
$592
Washington, D.C.Helsinki
IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa
IADHEL
Washington, D.C. Dulles Intl
Wed 10/21
12:30 pm-8:25 pm
2 stops24h 55m
Helsinki-Vantaa
Sun 11/1
4:05 pm-5:15 pm
1 stop32h 10m
$603
Washington, D.C.Helsinki
IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa
IADHEL
Washington, D.C. Dulles Intl
Sat 10/10
8:20 pm-7:05 pm
2 stops15h 45m
Helsinki-Vantaa
Tue 10/20
9:15 pm-11:50 am
3 stops45h 35m
$700
Quickest round-trip
Washington, D.C.Helsinki
IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa
IADHEL
Washington, D.C. Dulles Intl
Fri 10/2
8:20 pm-3:20 pm
1 stop12h 00m
Helsinki-Vantaa
Fri 10/9
11:05 am-5:00 pm
2 stops12h 55m
$721
Cheapest one-way
Washington, D.C.Helsinki
IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa
IADHEL
Washington, D.C. Dulles Intl
Sun 11/1
10:30 pm-8:55 pm
3 stops39h 25m
$335
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Dulles Intl to Helsinki
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Helsinki in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Helsinki flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Helsinki flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Helsinki flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Helsinki flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Dulles Intl to Helsinki
Have a flexible travel schedule? Discover the best time to fly to Helsinki from Dulles Intl with our price prediction graph.
IAD-HEL
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. Dulles Intl Airport to Helsinki
Prices
More
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Helsinki?
To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Helsinki, you should look to book at least 45 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Helsinki?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Helsinki (average of $510). Flying from Washington, D.C. Dulles Intl Airport to Helsinki in June is currently the most expensive (average of $1,009). 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.
How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Helsinki?
Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to Helsinki flights typically cost between $674 and $911 in October.The cheapest round-trip price found within the last 5 days was $355 on Scandinavian Airlines (Oct 26-Nov 10).
What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Helsinki?
Share of 1-stop round-trip flights from Washington, D.C. Dulles Intl Airport to Helsinki chosen by Cheapflights users in the past 12 months, using the same layover each way.
Copenhagen (CPH) – chosen by Cheapflights users on 67% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Helsinki on Cheapflights.
What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Helsinki?
Average round-trip fare for 1-stop flights from Washington, D.C. Dulles Intl Airport to Helsinki, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Istanbul (IST) is the most affordable 1-stop option, with an average round-trip price of $467.
What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Helsinki?
Shortest average travel time for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Helsinki, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 10h 15m.
Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Helsinki?
Average layover duration for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Helsinki, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 0h 55m.
Reviews of airlines servicing Helsinki
Get insights into the airlines that provide service to Helsinki. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helsinki. Reviews last updated September 3, 2026.
See what other customers who have flown with Scandinavian Airlines,United Airlines, andIcelandair from Washington, D.C. Dulles Intl Airport to Helsinki have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Crew
8.0
Entertainment
6.8
Boarding
7.7
Food
6.8
Comfort
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
BOS - CPH
Overall
7.4
Crew
8.0
Entertainment
6.8
Boarding
7.7
Food
6.8
Comfort
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
BOS - CPH
Overall
7.4
Crew
8.0
Entertainment
6.8
Boarding
7.7
Food
6.8
Comfort
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
BOS - CPH
Overall
7.4
Crew
8.0
Entertainment
6.8
Boarding
7.7
Food
6.8
Comfort
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
BOS - CPH
Overall
7.4
Crew
8.0
Entertainment
6.8
Boarding
7.7
Food
6.8
Comfort
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
BOS - CPH
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Top 4 airlines flying from Dulles Intl to Helsinki
Discover the top 4 airlines that operate flights from Dulles Intl to Helsinki. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$374 | Average$743 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$403 | Average$589 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$481 | Average$774 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$501 | Average$893 | FlexibilityNo cancel fee | On-time76% |