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FSI to SFZ: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Smithfield (North Central State Airport)
1,536 mi
2,472 km · 1,335 nm
3h 29m
estimated nonstop flight time
+1h
time difference · heading northeast
See live FSI→SFZ fares Phone-only fares on this route — call free
Flight time details
1,536 miles nonstop takes roughly 3h 29m gate to gate, flying northeast. 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
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- SFZ — North Central State Airport · Smithfield, 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 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
Near SFZ
- BOS · General Edward Lawrence Logan International Airport39 mi away
- PVD · Theodore Francis Green State Airport14 mi away
- NCO · Quonset State Airport23 mi away
- OWD · Norwood Memorial Airport25 mi away
Frequently asked questions
How far is FSI from SFZ?
The flight distance from Fort Sill (FSI) to Smithfield (SFZ) is 1,536 miles (2,472 km, 1,335 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to SFZ?
A nonstop flight takes about 3h 29m 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 Fort Sill and Smithfield?
Smithfield is 1 hour ahead of Fort Sill.
What is the cheapest way to fly from FSI to SFZ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–SFZ that never appear on search engines, with no booking fees.