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FMA to FSI: distance & flight time
Formosa (Formosa Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
4,959 mi
7,981 km · 4,309 nm
10h 11m
estimated nonstop flight time
-2h
time difference · heading northwest
See live FMA→FSI fares Phone-only fares on this route — call free
Flight time details
4,959 miles nonstop takes roughly 10h 11m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- FMA — Formosa Airport · Formosa, Argentina
- 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 FMA
- PIL · Carlos Miguel Gimenez Airport47 mi away
- ASU · Silvio Pettirossi International Airport80 mi away
- CNQ · Corrientes Airport91 mi away
- RES · Resistencia International Airport100 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 FMA from FSI?
The flight distance from Formosa (FMA) to Fort Sill (FSI) is 4,959 miles (7,981 km, 4,309 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FMA to FSI?
A nonstop flight takes about 10h 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 Formosa and Fort Sill?
Fort Sill is 2 hours behind Formosa.
What is the cheapest way to fly from FMA to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FMA–FSI that never appear on search engines, with no booking fees.