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FSI to UBJ: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Yamaguchi (Yamaguchi Ube Airport)
6,712 mi
10,801 km · 5,832 nm
13h 38m
estimated nonstop flight time
+14h
time difference · heading northwest
See live FSI→UBJ fares Phone-only fares on this route — call free
Flight time details
6,712 miles nonstop takes roughly 13h 38m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- UBJ — Yamaguchi Ube Airport · Yamaguchi, Japan
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 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
Near UBJ
- KKJ · Kitakyūshū Airport15 mi away
- OIT · Oita Airport41 mi away
- FUK · Fukuoka Airport53 mi away
- IWK · Iwakuni Marine Corps Air Station57 mi away
Frequently asked questions
How far is FSI from UBJ?
The flight distance from Fort Sill (FSI) to Yamaguchi (UBJ) is 6,712 miles (10,801 km, 5,832 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to UBJ?
A nonstop flight takes about 13h 38m 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 Fort Sill and Yamaguchi?
Yamaguchi is 14 hours ahead of Fort Sill.
What is the cheapest way to fly from FSI to UBJ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–UBJ that never appear on search engines, with no booking fees.