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THR to FSI: distance & flight time
Teheran (Mehrabad International Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
7,199 mi
11,586 km · 6,256 nm
14h 35m
estimated nonstop flight time
-8.5h
time difference · heading northwest
See live THR→FSI fares Phone-only fares on this route — call free
Flight time details
7,199 miles nonstop takes roughly 14h 35m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8.5-hour time set-back when reading arrival times on your ticket.
The two airports
- THR — Mehrabad International Airport · Teheran, Iran
- 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 THR
- IKA · Imam Khomeini International Airport21 mi away
- PYK · Payam International Airport28 mi away
- NSH · Noshahr Airport68 mi away
- GZW · Qazvin Airport80 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 THR from FSI?
The flight distance from Teheran (THR) to Fort Sill (FSI) is 7,199 miles (11,586 km, 6,256 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THR to FSI?
A nonstop flight takes about 14h 35m 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 Teheran and Fort Sill?
Fort Sill is 8.5 hours behind Teheran.
What is the cheapest way to fly from THR to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THR–FSI that never appear on search engines, with no booking fees.