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GRM to EFL: distance & flight time
Grand Marais (Grand Marais Cook County Airport) → Keffallinia (Kefallinia Airport)
5,139 mi
8,270 km · 4,465 nm
10h 33m
estimated nonstop flight time
+8h
time difference · heading northeast
See live GRM→EFL fares Phone-only fares on this route — call free
Flight time details
5,139 miles nonstop takes roughly 10h 33m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- GRM — Grand Marais Cook County Airport · Grand Marais, United States
- EFL — Kefallinia Airport · Keffallinia, Greece
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 EFL
- ZTH · Zakynthos International Airport "Dionysios Solomos"33 mi away
- PYR · Andravida Air Base45 mi away
- GPA · Araxos Airport50 mi away
- AGQ · Agrinion Air Base57 mi away
Frequently asked questions
How far is GRM from EFL?
The flight distance from Grand Marais (GRM) to Keffallinia (EFL) is 5,139 miles (8,270 km, 4,465 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRM to EFL?
A nonstop flight takes about 10h 33m 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 Keffallinia?
Keffallinia is 8 hours ahead of Grand Marais.
What is the cheapest way to fly from GRM to EFL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRM–EFL that never appear on search engines, with no booking fees.