Need help booking?
Unpublished phone-only deals available
HEL to BFI: distance & flight time
Helsinki (Helsinki Vantaa Airport) → Seattle (Boeing Field King County International Airport)
4,762 mi
7,664 km · 4,138 nm
9h 48m
estimated nonstop flight time
-10h
time difference · heading northwest
See live HEL→BFI fares Phone-only fares on this route — call free
Flight time details
4,762 miles nonstop takes roughly 9h 48m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time set-back when reading arrival times on your ticket.
The two airports
- HEL — Helsinki Vantaa Airport · Helsinki, Finland
- BFI — Boeing Field King County International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near HEL
- HEM · Helsinki Malmi Airport5 mi away
- HYV · Hyvinkää Airfield23 mi away
- QLF · Lahti Vesivehmaa Airport62 mi away
- TLL · Lennart Meri Tallinn Airport63 mi away
Near BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Frequently asked questions
How far is HEL from BFI?
The flight distance from Helsinki (HEL) to Seattle (BFI) is 4,762 miles (7,664 km, 4,138 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HEL to BFI?
A nonstop flight takes about 9h 48m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Helsinki and Seattle?
Seattle is 10 hours behind Helsinki.
What is the cheapest way to fly from HEL to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HEL–BFI that never appear on search engines, with no booking fees.