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SOF to FSI: distance & flight time
Sofia (Sofia Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
5,954 mi
9,581 km · 5,174 nm
12h 8m
estimated nonstop flight time
-8h
time difference · heading northwest
See live SOF→FSI fares Phone-only fares on this route — call free
Flight time details
5,954 miles nonstop takes roughly 12h 8m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- SOF — Sofia Airport · Sofia, Bulgaria
- 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 SOF
- PDV · Plovdiv International Airport85 mi away
- INI · Nis Airport90 mi away
- SKP · Skopje Alexander the Great Airport105 mi away
- CRA · Craiova Airport115 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 SOF from FSI?
The flight distance from Sofia (SOF) to Fort Sill (FSI) is 5,954 miles (9,581 km, 5,174 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SOF to FSI?
A nonstop flight takes about 12h 8m 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 Sofia and Fort Sill?
Fort Sill is 8 hours behind Sofia.
What is the cheapest way to fly from SOF to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SOF–FSI that never appear on search engines, with no booking fees.