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GRF to KEF: distance & flight time
Fort Lewis (Gray Army Air Field) → Keflavik (Keflavik International Airport)
3,639 mi
5,857 km · 3,163 nm
7h 36m
estimated nonstop flight time
+7h
time difference · heading northeast
See live GRF→KEF fares Phone-only fares on this route — call free
Flight time details
3,639 miles nonstop takes roughly 7h 36m 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
- GRF — Gray Army Air Field · Fort Lewis, 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 GRF
- SEA · Seattle Tacoma International Airport29 mi away
- TCM · McChord Air Force Base6 mi away
- TIW · Tacoma Narrows Airport13 mi away
- OLM · Olympia Regional Airport17 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 GRF from KEF?
The flight distance from Fort Lewis (GRF) to Keflavik (KEF) is 3,639 miles (5,857 km, 3,163 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRF to KEF?
A nonstop flight takes about 7h 36m 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 Fort Lewis and Keflavik?
Keflavik is 7 hours ahead of Fort Lewis.
What is the cheapest way to fly from GRF to KEF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRF–KEF that never appear on search engines, with no booking fees.