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GCC to FSI: distance & flight time
Gillette (Gillette Campbell County Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
770 mi
1,239 km · 669 nm
2h 8m
estimated nonstop flight time
+1h
time difference · heading southeast
See live GCC→FSI fares Phone-only fares on this route — call free
Flight time details
770 miles nonstop takes roughly 2h 8m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- GCC — Gillette Campbell County Airport · Gillette, United States
- 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 GCC
- SHR · Sheridan County Airport77 mi away
- SPF · Black Hills Airport-Clyde Ice Field87 mi away
- CPR · Casper-Natrona County International Airport110 mi away
- RCA · Ellsworth Air Force Base121 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 GCC from FSI?
The flight distance from Gillette (GCC) to Fort Sill (FSI) is 770 miles (1,239 km, 669 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GCC to FSI?
A nonstop flight takes about 2h 8m 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 Gillette and Fort Sill?
Fort Sill is 1 hour ahead of Gillette.
What is the cheapest way to fly from GCC to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GCC–FSI that never appear on search engines, with no booking fees.