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GUS to FSI: distance & flight time
Peru (Grissom Air Reserve Base) → Fort Sill (Henry Post Army Air Field (Fort Sill))
787 mi
1,266 km · 684 nm
2h 11m
estimated nonstop flight time
-1h
time difference · heading southwest
See live GUS→FSI fares Phone-only fares on this route — call free
Flight time details
787 miles nonstop takes roughly 2h 11m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- GUS — Grissom Air Reserve Base · Peru, 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 GUS
- OKK · Kokomo Municipal Airport10 mi away
- LAF · Purdue University Airport44 mi away
- AID · Anderson Municipal Darlington Field47 mi away
- MIE · Delaware County Johnson Field49 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 GUS from FSI?
The flight distance from Peru (GUS) to Fort Sill (FSI) is 787 miles (1,266 km, 684 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GUS to FSI?
A nonstop flight takes about 2h 11m 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 Peru and Fort Sill?
Fort Sill is 1 hour behind Peru.
What is the cheapest way to fly from GUS to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GUS–FSI that never appear on search engines, with no booking fees.