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HMY to GRF: distance & flight time
Seosan (Seosan Air Base) → Fort Lewis (Gray Army Air Field)
5,248 mi
8,446 km · 4,561 nm
10h 45m
estimated nonstop flight time
—
time difference · heading northeast
See live HMY→GRF fares Phone-only fares on this route — call free
Flight time details
5,248 miles nonstop takes roughly 10h 45m 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
- HMY — Seosan Air Base · Seosan, South Korea
- 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 HMY
- ICN · Incheon International Airport53 mi away
- OSN · Osan Air Base40 mi away
- SWU · Suwon Airport47 mi away
- KUV · Kunsan Air Base56 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 HMY from GRF?
The flight distance from Seosan (HMY) to Fort Lewis (GRF) is 5,248 miles (8,446 km, 4,561 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HMY to GRF?
A nonstop flight takes about 10h 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 cheapest way to fly from HMY to GRF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HMY–GRF that never appear on search engines, with no booking fees.