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GRF to KAG: distance & flight time
Fort Lewis (Gray Army Air Field) → Kangnung (Gangneung Airport (K-18))
5,104 mi
8,215 km · 4,435 nm
10h 29m
estimated nonstop flight time
+16h
time difference · heading northwest
See live GRF→KAG fares Phone-only fares on this route — call free
Flight time details
5,104 miles nonstop takes roughly 10h 29m 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
- KAG — Gangneung Airport (K-18) · Kangnung, South Korea
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 KAG
- YNY · Yangyang International Airport26 mi away
- WJU · Wonju/Hoengseong Air Base (K-38/K-46)58 mi away
- YEC · Yecheon Airbase84 mi away
- ICN · Incheon International Airport138 mi away
Frequently asked questions
How far is GRF from KAG?
The flight distance from Fort Lewis (GRF) to Kangnung (KAG) is 5,104 miles (8,215 km, 4,435 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRF to KAG?
A nonstop flight takes about 10h 29m 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 Kangnung?
Kangnung is 16 hours ahead of Fort Lewis.
What is the cheapest way to fly from GRF to KAG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRF–KAG that never appear on search engines, with no booking fees.