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SPF to GAI: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Gaithersburg (Montgomery County Airpark)
1,412 mi
2,272 km · 1,227 nm
3h 32m
estimated nonstop flight time
+2h
time difference · heading east
See live SPF→GAI fares Phone-only fares on this route — call free
Flight time details
1,412 miles nonstop takes roughly 3h 32m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-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
- GAI — Montgomery County Airpark · Gaithersburg, 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 GAI
Frequently asked questions
How far is SPF from GAI?
The flight distance from Spearfish-South Dakota (SPF) to Gaithersburg (GAI) is 1,412 miles (2,272 km, 1,227 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to GAI?
A nonstop flight takes about 3h 32m 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 Gaithersburg?
Gaithersburg is 2 hours ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–GAI that never appear on search engines, with no booking fees.