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CSM to FSI: distance & flight time
Clinton (Clinton Sherman Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
66 mi
106 km · 57 nm
38m
estimated nonstop flight time
Same time
time difference · heading southeast
See live CSM→FSI fares Phone-only fares on this route — call free
Flight time details
66 miles nonstop takes roughly 38m gate to gate, flying southeast. 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
- CSM — Clinton Sherman Airport · Clinton, 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 CSM
- HBR · Hobart Regional Airport26 mi away
- LTS · Altus Air Force Base47 mi away
- FSI · Henry Post Army Air Field (Fort Sill)66 mi away
- LAW · Lawton Fort Sill Regional Airport69 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 CSM from FSI?
The flight distance from Clinton (CSM) to Fort Sill (FSI) is 66 miles (106 km, 57 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CSM to FSI?
A nonstop flight takes about 38m 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 CSM to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CSM–FSI that never appear on search engines, with no booking fees.