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SPF to GRK: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Killeen (Robert Gray Army Air Field Airport)
981 mi
1,579 km · 853 nm
2h 36m
estimated nonstop flight time
+1h
time difference · heading south
See live SPF→GRK fares Phone-only fares on this route — call free
Flight time details
981 miles nonstop takes roughly 2h 36m gate to gate, flying south. 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
- GRK — Robert Gray Army Air Field Airport · Killeen, 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
Near GRK
- HLR · Hood Army Air Field8 mi away
- AUS · Austin Bergstrom International Airport61 mi away
- TPL · Draughon Miller Central Texas Regional Airport26 mi away
- ACT · Waco Regional Airport52 mi away
Frequently asked questions
How far is SPF from GRK?
The flight distance from Spearfish-South Dakota (SPF) to Killeen (GRK) is 981 miles (1,579 km, 853 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to GRK?
A nonstop flight takes about 2h 36m 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 Killeen?
Killeen is 1 hour ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to GRK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–GRK that never appear on search engines, with no booking fees.