Distance From Loon Lake Seaplane Base to London Heathrow Airport

The distance from Loon Lake Seaplane Base () to London Heathrow Airport (LHR) is 3768 miles or 6064 kilometers or 3272 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Grand Marais ( United States ) to London ( United Kingdom )?

A one-way nonstop (direct) flight between Grand Marais and London takes around 8 hours 39 minutes.

Estimated flight time from Loon Lake Seaplane Base, Grand Marais, United States to London Heathrow Airport, London, United Kingdom is 8 hours 39 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - LHR

Kilometers		6064 km
Statute Miles		3768 miles
Nautical Miles		3272 nm
Avg. Time of Flight		8 hours 39 minutes

Loon Lake Seaplane Base to London Heathrow Airport Flight Route Map - to LHR Flight Path

Location of Loon Lake Seaplane Base & London Heathrow Airport is given below.
Click the map to view Grand Marais to London nonstop flight path and travel direction.

Click to see flight route on Google Map between Grand Marais, United States and London, United Kingdom. .

Nonstop flight route between Grand Marais, United States and London, United Kingdom.

Time Difference Between the Airports • - LHR

Time difference between Grand Marais (United States) and London (United Kingdom) is 6 Hours.
London time is 6 Hours ahead of Grand Marais.

Location	Local Time
Grand Marais (United States)	2025-12-15, 23:02:50 CST
London (United Kingdom)	2025-12-16, 05:02:50 GMT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Loon Lake Seaplane Base ( / 83MN) Grand Marais, United States

Destination

London Heathrow Airport (LHR / EGLL) London, United Kingdom