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YEC to GRF: distance & flight time
Yechon (Yecheon Airbase) → Fort Lewis (Gray Army Air Field)
5,184 mi
8,343 km · 4,505 nm
10h 38m
estimated nonstop flight time
-16h
time difference · heading northeast
See live YEC→GRF fares Phone-only fares on this route — call free
Flight time details
5,184 miles nonstop takes roughly 10h 38m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time set-back when reading arrival times on your ticket.
The two airports
- YEC — Yecheon Airbase · Yechon, 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 YEC
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 YEC from GRF?
The flight distance from Yechon (YEC) to Fort Lewis (GRF) is 5,184 miles (8,343 km, 4,505 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YEC to GRF?
A nonstop flight takes about 10h 38m 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 Yechon and Fort Lewis?
Fort Lewis is 16 hours behind Yechon.
What is the cheapest way to fly from YEC to GRF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YEC–GRF that never appear on search engines, with no booking fees.