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HOU to FSI: distance & flight time
Houston (William P Hobby Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
391 mi
629 km · 340 nm
1h 30m
estimated nonstop flight time
Same time
time difference · heading northwest
See live HOU→FSI fares Phone-only fares on this route — call free
Flight time details
391 miles nonstop takes roughly 1h 30m gate to gate, flying northwest. 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
- HOU — William P Hobby Airport · Houston, 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 HOU
- IAH · George Bush Intercontinental Houston Airport24 mi away
- EFD · Ellington Airport8 mi away
- AAP · Andrau Airpark19 mi away
- SGR · Sugar Land Regional Airport23 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 HOU from FSI?
The flight distance from Houston (HOU) to Fort Sill (FSI) is 391 miles (629 km, 340 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HOU to FSI?
A nonstop flight takes about 1h 30m 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 HOU to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HOU–FSI that never appear on search engines, with no booking fees.