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PRM to GRM: distance & flight time
Portimao (Portimão Airport) → Grand Marais (Grand Marais Cook County Airport)
4,035 mi
6,494 km · 3,506 nm
8h 23m
estimated nonstop flight time
-6h
time difference · heading northwest
See live PRM→GRM fares Phone-only fares on this route — call free
Flight time details
4,035 miles nonstop takes roughly 8h 23m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- PRM — Portimão Airport · Portimao, Portugal
- GRM — Grand Marais Cook County Airport · Grand Marais, 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 GRM
- YQT · Thunder Bay Airport61 mi away
- LYU · Ely Municipal Airport67 mi away
- YIB · Atikokan Municipal Airport87 mi away
- CMX · Houghton County Memorial Airport100 mi away
Frequently asked questions
How far is PRM from GRM?
The flight distance from Portimao (PRM) to Grand Marais (GRM) is 4,035 miles (6,494 km, 3,506 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PRM to GRM?
A nonstop flight takes about 8h 23m 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 Grand Marais?
Grand Marais is 6 hours behind Portimao.
What is the cheapest way to fly from PRM to GRM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PRM–GRM that never appear on search engines, with no booking fees.