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IWK to GRF: distance & flight time
Iwakuni (Iwakuni Marine Corps Air Station) → Fort Lewis (Gray Army Air Field)
5,163 mi
8,309 km · 4,487 nm
10h 35m
estimated nonstop flight time
—
time difference · heading northeast
See live IWK→GRF fares Phone-only fares on this route — call free
Flight time details
5,163 miles nonstop takes roughly 10h 35m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- IWK — Iwakuni Marine Corps Air Station · Iwakuni, Japan
- GRF — Gray Army Air Field · Fort Lewis, 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 IWK
- HIW · Hiroshimanishi Airport18 mi away
- MYJ · Matsuyama Airport34 mi away
- HIJ · Hiroshima Airport44 mi away
- IWJ · Iwami Airport45 mi away
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
Frequently asked questions
How far is IWK from GRF?
The flight distance from Iwakuni (IWK) to Fort Lewis (GRF) is 5,163 miles (8,309 km, 4,487 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IWK to GRF?
A nonstop flight takes about 10h 35m 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 cheapest way to fly from IWK to GRF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IWK–GRF that never appear on search engines, with no booking fees.