
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $366 (oojo) |
One-way from | $167 (Flightnetwork) |
Popular in | June |
Cheapest in | January |
Average price | $552 |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Helsinki
IAD - HEL
IADHEL
Washington, D.C. Dulles Intl
Wed 5/6
8:20 pm-10:35 am
1 stop31h 15m
Helsinki-Vantaa
Mon 5/11
9:15 pm-5:00 pm
2 stops50h 45m
Washington, D.C.Helsinki
IAD - HEL
IADHEL
Washington, D.C. Dulles Intl
Mon 4/13
6:10 pm-12:25 am
1 stop23h 15m
Helsinki-Vantaa
Mon 4/20
1:55 pm-3:35 pm
1 stop32h 40m
Washington, D.C.Helsinki
IAD - HEL
IADHEL
Washington, D.C. Dulles Intl
Mon 5/4
12:45 pm-12:55 pm
2 stops17h 10m
Helsinki-Vantaa
Sun 5/10
7:00 am-3:35 pm
1 stop15h 35m
Washington, D.C.Helsinki
IAD - HEL
IADHEL
Washington, D.C. Dulles Intl
Mon 3/23
7:59 pm-5:25 pm
2 stops15h 26m
Helsinki-Vantaa
Wed 4/1
7:00 am-3:35 pm
1 stop15h 35m
Washington, D.C.Helsinki
IAD - HEL
IADHEL
Washington, D.C. Dulles Intl
Mon 5/4
1:05 pm-1:10 pm
2 stops17h 05m
Helsinki-Vantaa
Sun 5/10
6:45 am-4:45 pm
2 stops17h 00m
Washington, D.C.Helsinki
IAD - HEL
IADHEL
Washington, D.C. Dulles Intl
Sun 5/3
8:20 pm-12:30 am
2 stops21h 10m
Helsinki-Vantaa
Sun 5/10
6:45 am-4:45 pm
2 stops17h 00m
Washington, D.C.Helsinki
IAD - HEL
IADHEL
Washington, D.C. Dulles Intl
Sun 3/29
4:30 pm-6:55 pm
2 stops43h 25m
Helsinki-Vantaa
Sun 4/5
1:45 pm-3:39 pm
2 stops32h 54m
Washington, D.C.Helsinki
IAD - HEL
IADHEL
Washington, D.C. Dulles Intl
Sat 8/15
10:24 pm-6:55 pm
2 stops37h 31m
Helsinki-Vantaa
Thu 8/20
6:35 am-7:14 pm
2 stops19h 39m
Washington, D.C.Helsinki
IAD - HEL
IADHEL
Washington, D.C. Dulles Intl
Fri 7/3
8:20 pm-3:20 pm
1 stop12h 00m
Helsinki-Vantaa
Thu 7/9
6:35 am-5:00 pm
1 stop17h 25m
Washington, D.C.Helsinki
IAD - HEL
IADHEL
Washington, D.C. Dulles Intl
Tue 5/19
8:30 pm-2:00 pm
1 stop10h 30m
| 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*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
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 46 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.
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Helsinki (average of $362). Flying from Washington, D.C. Dulles Intl Airport to Helsinki in June is currently the most expensive (average of $655). 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.
Copenhagen (CPH) – chosen by Cheapflights users on 50% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Helsinki on Cheapflights.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $459.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 10h 21m.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 02m.
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Dane,Jan 2026
TYS - IAD
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Dane,Jan 2026
TYS - IAD
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Dane,Jan 2026
TYS - IAD
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Dane,Jan 2026
TYS - IAD
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Dane,Jan 2026
TYS - IAD
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Dane,Jan 2026
TYS - IAD
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$365 | Average$513 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$467 | Average$555 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$481 | Average$774 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$486 | Average$786 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$527 | Average$737 | FlexibilityNo cancel fee | On-time70% |