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GRF to YNY: distance & flight time
Fort Lewis (Gray Army Air Field) → Sokcho / Gangneung (Yangyang International Airport)
5,099 mi
8,205 km · 4,431 nm
10h 28m
estimated nonstop flight time
+17h
time difference · heading northwest
See live GRF→YNY fares Phone-only fares on this route — call free
Flight time details
5,099 miles nonstop takes roughly 10h 28m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 17-hour time gain when reading arrival times on your ticket.
The two airports
- GRF — Gray Army Air Field · Fort Lewis, United States
- YNY — Yangyang International Airport · Sokcho / Gangneung, 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 YNY
- KAG · Gangneung Airport (K-18)26 mi away
- WJU · Wonju/Hoengseong Air Base (K-38/K-46)58 mi away
- ICN · Incheon International Airport128 mi away
- SSN · Seoul Air Base (K-16)95 mi away
Frequently asked questions
How far is GRF from YNY?
The flight distance from Fort Lewis (GRF) to Sokcho / Gangneung (YNY) is 5,099 miles (8,205 km, 4,431 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRF to YNY?
A nonstop flight takes about 10h 28m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from GRF to YNY?
Nonstop service on GRF–YNY depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 10h 28m nonstop estimate.
What is the time difference between Fort Lewis and Sokcho / Gangneung?
Sokcho / Gangneung is 17 hours ahead of Fort Lewis.
What is the cheapest way to fly from GRF to YNY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRF–YNY that never appear on search engines, with no booking fees.
Why are some GRF to YNY fares phone-only?
Consolidator contracts let us sell certain GRF–YNY tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.