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SPF to SKF: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → San Antonio (Lackland Air Force Base)
1,081 mi
1,740 km · 940 nm
2h 49m
estimated nonstop flight time
+1h
time difference · heading south
See live SPF→SKF fares Phone-only fares on this route — call free
Flight time details
1,081 miles nonstop takes roughly 2h 49m 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
- SKF — Lackland Air Force Base · San Antonio, 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 SKF
- SSF · Stinson Municipal Airport7 mi away
- SAT · San Antonio International Airport12 mi away
- RND · Randolph Air Force Base21 mi away
- AUS · Austin Bergstrom International Airport78 mi away
Frequently asked questions
How far is SPF from SKF?
The flight distance from Spearfish-South Dakota (SPF) to San Antonio (SKF) is 1,081 miles (1,740 km, 940 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to SKF?
A nonstop flight takes about 2h 49m 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 San Antonio?
San Antonio is 1 hour ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to SKF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–SKF that never appear on search engines, with no booking fees.