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GRF to IBR: distance & flight time
Fort Lewis (Gray Army Air Field) → Ibaraki (Hyakuri Airport)
4,738 mi
7,625 km · 4,117 nm
9h 45m
estimated nonstop flight time
+16h
time difference · heading northwest
See live GRF→IBR fares Phone-only fares on this route — call free
Flight time details
4,738 miles nonstop takes roughly 9h 45m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- GRF — Gray Army Air Field · Fort Lewis, United States
- IBR — Hyakuri Airport · Ibaraki, Japan
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 IBR
- NRT · Narita International Airport29 mi away
- HND · Tokyo Haneda International Airport56 mi away
- OKO · Yokota Air Base67 mi away
- FKS · Fukushima Airport72 mi away
Frequently asked questions
How far is GRF from IBR?
The flight distance from Fort Lewis (GRF) to Ibaraki (IBR) is 4,738 miles (7,625 km, 4,117 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRF to IBR?
A nonstop flight takes about 9h 45m 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 Ibaraki?
Ibaraki is 16 hours ahead of Fort Lewis.
What is the cheapest way to fly from GRF to IBR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRF–IBR that never appear on search engines, with no booking fees.