Find cheap airlines flights from Washington D.C. to Helsinki

You can choose from 2 airlines that fly from Washington D.C. to Helsinki, including KLM, Icelandair, Icelandair has lowest fares on this route.
KLM logo KLM
Icelandair logo Icelandair
Airlines are determined based on actual purchased flight tickets from Washington D.C. to Helsinki according to previous 12 months data from Trip.com.

Find flight deals from Washington D.C. to Helsinki for the next 3 months. Book one way flights from $174 or round trip flights from $374.

Displayed flight fares from Washington D.C. to Helsinki are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Washington D.C. to Helsinki

The distance between Washington D.C. and Helsinki is approximately 6,924.56 km. Based on Trip.com's data travel demand peaks in July. The off-season for travel is November.

Cheapest one-way flight price$174
Cheapest round-trip ticket price$374
Off-season for travelNovember
Peak season for travelJuly
Flight distance6,924.56 km
Popular airlineKLM Royal Dutch Airlines
Flight statistics for the Washington D.C.–Helsinki route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Washington D.C. to Helsinki (WAS-HEL)?

    Based on Trip.com data, Icelandair offers one-way fares as low as $174 on Cheapest nonstop routes (e.g. IAD to HEL on Thu, Apr 16), while Icelandair offers Cheapest nonstop round-trips from $374 departing on Wed, Mar 18 and returning on Wed, Mar 25.
  • At the moment, several airlines serve connecting flights from Washington D.C. to Helsinki, including: KLM Royal Dutch Airlines Icelandair Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Washington D.C. to Helsinki is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Washington D.C. to Helsinki, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Apr 16, with one-way flights priced at just $174.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Icelandair.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Helsinki travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Washington D.C. to Helsinki is November, when demand for travel is lower.
  • After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Washington D.C. to Helsinki on March 21, 2026 with Icelandair, with prices starting at $378.
  • You can land at any one of the following hubs in Helsinki, with Dulles International Airport to Helsinki Airport (IAD-HEL) is by far the most common option on this route: Helsinki Airport (HEL).
  • The time difference between Helsinki and Washington D.C. is 7h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com airline insights on flights from Washington D.C. to Helsinki

Which airlines offer the cheapest nonstop flights from Washington D.C. to Helsinki?

Data is based on the average price of all nonstop flights from Washington D.C. to Helsinki on Trip.com in the past 12 months.

Based on Trip.com data from the past 12 months, Icelandair offers the cheapest nonstop flights from Washington D.C. to Helsinki, with an average price of $360.

$241
$360
$480
$599
$718
Icelandair
$360
Icelandair
Lufthansa
$373
Lufthansa
United Airlines
$583
United Airlines
KLM
$701
KLM
Delta Air Lines
$718
Delta Air Lines

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.