Need help booking?
Unpublished phone-only deals available
FAO to FSI: distance & flight time
Faro (Faro Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
4,856 mi
7,816 km · 4,220 nm
9h 59m
estimated nonstop flight time
-6h
time difference · heading northwest
See live FAO→FSI fares Phone-only fares on this route — call free
Flight time details
4,856 miles nonstop takes roughly 9h 59m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- FAO — Faro Airport · Faro, Portugal
- 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 FAO
- PRM · Portimão Airport35 mi away
- BYJ · Beja Airport / Airbase74 mi away
- ROZ · Rota Naval Station Airport93 mi away
- XRY · Jerez Airport107 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 FAO from FSI?
The flight distance from Faro (FAO) to Fort Sill (FSI) is 4,856 miles (7,816 km, 4,220 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FAO to FSI?
A nonstop flight takes about 9h 59m 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 Faro and Fort Sill?
Fort Sill is 6 hours behind Faro.
What is the cheapest way to fly from FAO to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FAO–FSI that never appear on search engines, with no booking fees.