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PRM to SPF: distance & flight time
Portimao (Portimão Airport) → Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field)
4,711 mi
7,582 km · 4,094 nm
9h 42m
estimated nonstop flight time
-7h
time difference · heading northwest
See live PRM→SPF fares Phone-only fares on this route — call free
Flight time details
4,711 miles nonstop takes roughly 9h 42m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- PRM — Portimão Airport · Portimao, Portugal
- 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 PRM
- FAO · Faro Airport35 mi away
- BYJ · Beja Airport / Airbase73 mi away
- CAT · Cascais Airport117 mi away
- LIS · Humberto Delgado Airport (Lisbon Portela Airport)117 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 PRM from SPF?
The flight distance from Portimao (PRM) to Spearfish-South Dakota (SPF) is 4,711 miles (7,582 km, 4,094 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PRM to SPF?
A nonstop flight takes about 9h 42m 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 Portimao and Spearfish-South Dakota?
Spearfish-South Dakota is 7 hours behind Portimao.
What is the cheapest way to fly from PRM to SPF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PRM–SPF that never appear on search engines, with no booking fees.