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FSI to BYI: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Burley (Burley Municipal Airport)
991 mi
1,594 km · 861 nm
2h 37m
estimated nonstop flight time
—
time difference · heading northwest
See live FSI→BYI fares Phone-only fares on this route — call free
Flight time details
991 miles nonstop takes roughly 2h 37m 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
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- BYI — Burley Municipal Airport · Burley, 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 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
Near BYI
- TWF · Joslin Field Magic Valley Regional Airport37 mi away
- PIH · Pocatello Regional Airport65 mi away
- SUN · Friedman Memorial Airport72 mi away
- IDA · Idaho Falls Regional Airport109 mi away
Frequently asked questions
How far is FSI from BYI?
The flight distance from Fort Sill (FSI) to Burley (BYI) is 991 miles (1,594 km, 861 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to BYI?
A nonstop flight takes about 2h 37m 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 FSI to BYI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–BYI that never appear on search engines, with no booking fees.