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OKM to FSI: distance & flight time
Okmulgee (Okmulgee Regional Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
155 mi
250 km · 135 nm
53m
estimated nonstop flight time
Same time
time difference · heading southwest
See live OKM→FSI fares Phone-only fares on this route — call free
Flight time details
155 miles nonstop takes roughly 53m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- OKM — Okmulgee Regional Airport · Okmulgee, 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 OKM
- RVS · Richard Lloyd Jones Jr Airport26 mi away
- TUL · Tulsa International Airport37 mi away
- CUH · Cushing Municipal Airport50 mi away
- MLC · Mc Alester Regional Airport55 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 OKM from FSI?
The flight distance from Okmulgee (OKM) to Fort Sill (FSI) is 155 miles (250 km, 135 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKM to FSI?
A nonstop flight takes about 53m 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 cheapest way to fly from OKM to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKM–FSI that never appear on search engines, with no booking fees.