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OKI to FSI: distance & flight time
Oki Island (Oki Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
6,518 mi
10,490 km · 5,664 nm
13h 15m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OKI→FSI fares Phone-only fares on this route — call free
Flight time details
6,518 miles nonstop takes roughly 13h 15m 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
- OKI — Oki Airport · Oki Island, 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 OKI
- YGJ · Miho Yonago Airport48 mi away
- IZO · Izumo Airport58 mi away
- TTJ · Tottori Airport65 mi away
- TJH · Tajima Airport94 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 OKI from FSI?
The flight distance from Oki Island (OKI) to Fort Sill (FSI) is 6,518 miles (10,490 km, 5,664 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKI to FSI?
A nonstop flight takes about 13h 15m 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 Oki Island and Fort Sill?
Fort Sill is 14 hours behind Oki Island.
What is the cheapest way to fly from OKI to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKI–FSI that never appear on search engines, with no booking fees.