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SFF to FSI: distance & flight time
Spokane (Felts Field) → Fort Sill (Henry Post Army Air Field (Fort Sill))
1,327 mi
2,136 km · 1,153 nm
3h 21m
estimated nonstop flight time
+2h
time difference · heading southeast
See live SFF→FSI fares Phone-only fares on this route — call free
Flight time details
1,327 miles nonstop takes roughly 3h 21m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- SFF — Felts Field · Spokane, 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 SFF
- GEG · Spokane International Airport11 mi away
- SKA · Fairchild Air Force Base16 mi away
- COE · Coeur D'Alene - Pappy Boyington Field24 mi away
- PUW · Pullman Moscow Regional Airport66 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 SFF from FSI?
The flight distance from Spokane (SFF) to Fort Sill (FSI) is 1,327 miles (2,136 km, 1,153 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SFF to FSI?
A nonstop flight takes about 3h 21m 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 Spokane and Fort Sill?
Fort Sill is 2 hours ahead of Spokane.
What is the cheapest way to fly from SFF to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SFF–FSI that never appear on search engines, with no booking fees.