Need help booking?
Unpublished phone-only deals available
DET to FSI: distance & flight time
Detroit (Coleman A. Young Municipal Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
987 mi
1,589 km · 858 nm
2h 37m
estimated nonstop flight time
-1h
time difference · heading southwest
See live DET→FSI fares Phone-only fares on this route — call free
Flight time details
987 miles nonstop takes roughly 2h 37m gate to gate, flying southwest. 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
- DET — Coleman A. Young Municipal Airport · Detroit, 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 DET
- DTW · Detroit Metropolitan Wayne County Airport22 mi away
- YQG · Windsor Airport10 mi away
- MTC · Selfridge Air National Guard Base Airport17 mi away
- PTK · Oakland County International Airport27 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 DET from FSI?
The flight distance from Detroit (DET) to Fort Sill (FSI) is 987 miles (1,589 km, 858 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DET to FSI?
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 time difference between Detroit and Fort Sill?
Fort Sill is 1 hour behind Detroit.
What is the cheapest way to fly from DET to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DET–FSI that never appear on search engines, with no booking fees.