Need help booking?
Unpublished phone-only deals available
KIJ to FSI: distance & flight time
Niigata (Niigata Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
6,213 mi
9,999 km · 5,399 nm
12h 39m
estimated nonstop flight time
-14h
time difference · heading northeast
See live KIJ→FSI fares Phone-only fares on this route — call free
Flight time details
6,213 miles nonstop takes roughly 12h 39m 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
- KIJ — Niigata Airport · Niigata, 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 KIJ
- SDS · Sado Airport39 mi away
- SYO · Shonai Airport69 mi away
- GAJ · Yamagata Airport75 mi away
- FKS · Fukushima Airport88 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 KIJ from FSI?
The flight distance from Niigata (KIJ) to Fort Sill (FSI) is 6,213 miles (9,999 km, 5,399 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KIJ to FSI?
A nonstop flight takes about 12h 39m 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 Niigata and Fort Sill?
Fort Sill is 14 hours behind Niigata.
What is the cheapest way to fly from KIJ to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KIJ–FSI that never appear on search engines, with no booking fees.