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FTK to SPF: distance & flight time
Fort Knox (Godman Army Air Field) → Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field)
1,028 mi
1,655 km · 894 nm
2h 42m
estimated nonstop flight time
-2h
time difference · heading northwest
See live FTK→SPF fares Phone-only fares on this route — call free
Flight time details
1,028 miles nonstop takes roughly 2h 42m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- FTK — Godman Army Air Field · Fort Knox, United States
- SPF — Black Hills Airport-Clyde Ice Field · Spearfish-South Dakota, 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 FTK
- SDF · Louisville International Standiford Field22 mi away
- LOU · Bowman Field28 mi away
- GLW · Glasgow Municipal Airport60 mi away
- FFT · Capital City Airport61 mi away
Near SPF
- RCA · Ellsworth Air Force Base41 mi away
- RAP · Rapid City Regional Airport47 mi away
- GCC · Gillette Campbell County Airport87 mi away
- CDR · Chadron Municipal Airport119 mi away
Frequently asked questions
How far is FTK from SPF?
The flight distance from Fort Knox (FTK) to Spearfish-South Dakota (SPF) is 1,028 miles (1,655 km, 894 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FTK to SPF?
A nonstop flight takes about 2h 42m 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 Knox and Spearfish-South Dakota?
Spearfish-South Dakota is 2 hours behind Fort Knox.
What is the cheapest way to fly from FTK to SPF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FTK–SPF that never appear on search engines, with no booking fees.