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SPF to PSM: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Portsmouth (Portsmouth International at Pease Airport)
1,636 mi
2,633 km · 1,422 nm
3h 40m
estimated nonstop flight time
+2h
time difference · heading east
See live SPF→PSM fares Phone-only fares on this route — call free
Flight time details
1,636 miles nonstop takes roughly 3h 40m 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
- PSM — Portsmouth International at Pease Airport · Portsmouth, 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 PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 mi away
Frequently asked questions
How far is SPF from PSM?
The flight distance from Spearfish-South Dakota (SPF) to Portsmouth (PSM) is 1,636 miles (2,633 km, 1,422 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to PSM?
A nonstop flight takes about 3h 40m 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 Portsmouth?
Portsmouth is 2 hours ahead of Spearfish-South Dakota.
What is the cheapest way to fly from SPF to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–PSM that never appear on search engines, with no booking fees.