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SPF to DEC: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Decatur (Decatur Airport)
827 mi
1,331 km · 719 nm
2h 16m
estimated nonstop flight time
+1h
time difference · heading east
See live SPF→DEC fares Phone-only fares on this route — call free
Flight time details
827 miles nonstop takes roughly 2h 16m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- SPF — Black Hills Airport-Clyde Ice Field · Spearfish-South Dakota, United States
- DEC — Decatur Airport · Decatur, 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 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 SPF from DEC?
The flight distance from Spearfish-South Dakota (SPF) to Decatur (DEC) is 827 miles (1,331 km, 719 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to DEC?
A nonstop flight takes about 2h 16m 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 Spearfish-South Dakota and Decatur?
Decatur is 1 hour ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to DEC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–DEC that never appear on search engines, with no booking fees.