Need help booking?
Unpublished phone-only deals available
WJU to FSI: distance & flight time
Wonju (Wonju/Hoengseong Air Base (K-38/K-46)) → Fort Sill (Henry Post Army Air Field (Fort Sill))
6,635 mi
10,678 km · 5,766 nm
13h 29m
estimated nonstop flight time
-14h
time difference · heading northeast
See live WJU→FSI fares Phone-only fares on this route — call free
Flight time details
6,635 miles nonstop takes roughly 13h 29m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- WJU — Wonju/Hoengseong Air Base (K-38/K-46) · Wonju, South Korea
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, 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 WJU
- ICN · Incheon International Airport83 mi away
- SSN · Seoul Air Base (K-16)47 mi away
- SWU · Suwon Airport54 mi away
- CJJ · Cheongju International Airport/Cheongju Air Base (K-59/G-513)56 mi away
Near FSI
- LAW · Lawton Fort Sill Regional Airport6 mi away
- DUC · Halliburton Field28 mi away
- HBR · Hobart Regional Airport44 mi away
- SPS · Sheppard Air Force Base-Wichita Falls Municipal Airport46 mi away
Frequently asked questions
How far is WJU from FSI?
The flight distance from Wonju (WJU) to Fort Sill (FSI) is 6,635 miles (10,678 km, 5,766 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WJU to FSI?
A nonstop flight takes about 13h 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 Wonju and Fort Sill?
Fort Sill is 14 hours behind Wonju.
What is the cheapest way to fly from WJU to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WJU–FSI that never appear on search engines, with no booking fees.