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GWT to BFI: distance & flight time
Westerland (Westerland Sylt Airport) → Seattle (Boeing Field King County International Airport)
4,800 mi
7,724 km · 4,171 nm
9h 53m
estimated nonstop flight time
-9h
time difference · heading northwest
See live GWT→BFI fares Phone-only fares on this route — call free
Flight time details
4,800 miles nonstop takes roughly 9h 53m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- GWT — Westerland Sylt Airport · Westerland, Germany
- 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 GWT
- FLF · Flensburg-Schäferhaus Airport42 mi away
- SKS · Skrydstrup Air Base42 mi away
- EBJ · Esbjerg Airport43 mi away
- PSH · St. Peter-Ording Airport44 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 GWT from BFI?
The flight distance from Westerland (GWT) to Seattle (BFI) is 4,800 miles (7,724 km, 4,171 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GWT to BFI?
A nonstop flight takes about 9h 53m 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 Westerland and Seattle?
Seattle is 9 hours behind Westerland.
What is the cheapest way to fly from GWT to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GWT–BFI that never appear on search engines, with no booking fees.