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THG to FSI: distance & flight time
Biloela (Thangool Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
8,311 mi
13,375 km · 7,222 nm
16h 46m
estimated nonstop flight time
-15h
time difference · heading northeast
See live THG→FSI fares Phone-only fares on this route — call free
Flight time details
8,311 miles nonstop takes roughly 16h 46m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- THG — Thangool Airport · Biloela, Australia
- 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 THG
- TDR · Theodore Airport46 mi away
- GLT · Gladstone Airport59 mi away
- ROK · Rockhampton Airport77 mi away
- GKL · Great Keppel Is Airport93 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 THG from FSI?
The flight distance from Biloela (THG) to Fort Sill (FSI) is 8,311 miles (13,375 km, 7,222 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THG to FSI?
A nonstop flight takes about 16h 46m 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 Biloela and Fort Sill?
Fort Sill is 15 hours behind Biloela.
What is the cheapest way to fly from THG to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THG–FSI that never appear on search engines, with no booking fees.