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SEP to SPF: distance & flight time
Stephenville (Stephenville Clark Regional Airport) → Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field)
900 mi
1,448 km · 782 nm
2h 25m
estimated nonstop flight time
-1h
time difference · heading north
See live SEP→SPF fares Phone-only fares on this route — call free
Flight time details
900 miles nonstop takes roughly 2h 25m gate to gate, flying north. 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
- SEP — Stephenville Clark Regional Airport · Stephenville, 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 SEP
- MWL · Mineral Wells Airport40 mi away
- DFW · Dallas Fort Worth International Airport81 mi away
- BKD · Stephens County Airport54 mi away
- FWH · NAS Fort Worth JRB/Carswell Field57 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 SEP from SPF?
The flight distance from Stephenville (SEP) to Spearfish-South Dakota (SPF) is 900 miles (1,448 km, 782 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEP to SPF?
A nonstop flight takes about 2h 25m 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 Stephenville and Spearfish-South Dakota?
Spearfish-South Dakota is 1 hour behind Stephenville.
What is the cheapest way to fly from SEP to SPF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEP–SPF that never appear on search engines, with no booking fees.