How far is Great Falls, MT, from London?

The distance between London (London Heathrow Airport) and Great Falls (Great Falls International Airport) is 4488 miles / 7223 kilometers / 3900 nautical miles.

Distance from London to Great Falls

There are several ways to calculate the distance from London to Great Falls. Here are two standard methods:

Vincenty's formula (applied above)

• 4488.214 miles
• 7223.081 kilometers
• 3900.152 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula

• 4474.731 miles
• 7201.382 kilometers
• 3888.435 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from London to Great Falls?

The estimated flight time from London Heathrow Airport to Great Falls International Airport is 8 hours and 59 minutes.

What is the time difference between London and Great Falls?

The time difference between London and Great Falls is 7 hours. Great Falls is 7 hours behind London.

Flight carbon footprint between London Heathrow Airport (LHR) and Great Falls International Airport (GTF)

On average, flying from London to Great Falls generates about 518 kg of CO2 per passenger, and 518 kilograms equals 1 142 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from London to Great Falls

See the map of the shortest flight path between London Heathrow Airport (LHR) and Great Falls International Airport (GTF).

Airport information

Origin	London Heathrow Airport
City:	London
Country:	United Kingdom
IATA Code:	LHR
ICAO Code:	EGLL
Coordinates:	51°28′14″N, 0°27′42″W

Destination	Great Falls International Airport
City:	Great Falls, MT
Country:	United States
IATA Code:	GTF
ICAO Code:	KGTF
Coordinates:	47°28′55″N, 111°22′15″W