Need help booking?
Unpublished phone-only deals available
IWK to FSI: distance & flight time
Iwakuni (Iwakuni Marine Corps Air Station) → Fort Sill (Henry Post Army Air Field (Fort Sill))
6,665 mi
10,727 km · 5,792 nm
13h 32m
estimated nonstop flight time
—
time difference · heading northeast
See live IWK→FSI fares Phone-only fares on this route — call free
Flight time details
6,665 miles nonstop takes roughly 13h 32m 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
- IWK — Iwakuni Marine Corps Air Station · Iwakuni, Japan
- 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 IWK
- HIW · Hiroshimanishi Airport18 mi away
- MYJ · Matsuyama Airport34 mi away
- HIJ · Hiroshima Airport44 mi away
- IWJ · Iwami Airport45 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 IWK from FSI?
The flight distance from Iwakuni (IWK) to Fort Sill (FSI) is 6,665 miles (10,727 km, 5,792 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IWK to FSI?
A nonstop flight takes about 13h 32m 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 IWK to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IWK–FSI that never appear on search engines, with no booking fees.