Need help booking?
Unpublished phone-only deals available
FSI to BTM: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Butte (Bert Mooney Airport)
1,075 mi
1,730 km · 934 nm
2h 48m
estimated nonstop flight time
-1h
time difference · heading northwest
See live FSI→BTM fares Phone-only fares on this route — call free
Flight time details
1,075 miles nonstop takes roughly 2h 48m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- BTM — Bert Mooney Airport · Butte, 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 BTM
- HLN · Helena Regional Airport51 mi away
- BZN · Gallatin Field66 mi away
- SMN · Lemhi County Airport88 mi away
- LVM · Mission Field100 mi away
Frequently asked questions
How far is FSI from BTM?
The flight distance from Fort Sill (FSI) to Butte (BTM) is 1,075 miles (1,730 km, 934 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to BTM?
A nonstop flight takes about 2h 48m 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 Fort Sill and Butte?
Butte is 1 hour behind Fort Sill.
What is the cheapest way to fly from FSI to BTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–BTM that never appear on search engines, with no booking fees.