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GRM to LIS: distance & flight time
Grand Marais (Grand Marais Cook County Airport) → Lisbon (Humberto Delgado Airport (Lisbon Portela Airport))
3,942 mi
6,344 km · 3,425 nm
8h 12m
estimated nonstop flight time
+6h
time difference · heading northeast
See live GRM→LIS fares Phone-only fares on this route — call free
Flight time details
3,942 miles nonstop takes roughly 8h 12m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- GRM — Grand Marais Cook County Airport · Grand Marais, United States
- LIS — Humberto Delgado Airport (Lisbon Portela Airport) · Lisbon, Portugal
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 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
Near LIS
- AVR · Alverca Air Base9 mi away
- CAT · Cascais Airport12 mi away
- QLR · Monte Real Air Base74 mi away
- BYJ · Beja Airport / Airbase81 mi away
Frequently asked questions
How far is GRM from LIS?
The flight distance from Grand Marais (GRM) to Lisbon (LIS) is 3,942 miles (6,344 km, 3,425 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRM to LIS?
A nonstop flight takes about 8h 12m 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 Grand Marais and Lisbon?
Lisbon is 6 hours ahead of Grand Marais.
What is the cheapest way to fly from GRM to LIS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRM–LIS that never appear on search engines, with no booking fees.