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BFI to KEF: distance & flight time
Seattle (Boeing Field King County International Airport) → Keflavik (Keflavik International Airport)
3,606 mi
5,804 km · 3,134 nm
7h 32m
estimated nonstop flight time
+7h
time difference · heading northeast
See live BFI→KEF fares Phone-only fares on this route — call free
Flight time details
3,606 miles nonstop takes roughly 7h 32m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- BFI — Boeing Field King County International Airport · Seattle, United States
- KEF — Keflavik International Airport · Keflavik, Iceland
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 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
Near KEF
- RKV · Reykjavik Airport22 mi away
- GUU · Grundarfjörður Airport72 mi away
- VEY · Vestmannaeyjar Airport81 mi away
- PFJ · Patreksfjörður Airport116 mi away
Frequently asked questions
How far is BFI from KEF?
The flight distance from Seattle (BFI) to Keflavik (KEF) is 3,606 miles (5,804 km, 3,134 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to KEF?
A nonstop flight takes about 7h 32m 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 Seattle and Keflavik?
Keflavik is 7 hours ahead of Seattle.
What is the cheapest way to fly from BFI to KEF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–KEF that never appear on search engines, with no booking fees.