How far is Helena, MT, from London?
The distance between London (London Heathrow Airport) and Helena (Helena Regional Airport) is 4553 miles / 7328 kilometers / 3957 nautical miles.
London Heathrow Airport – Helena Regional Airport
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Distance from London to Helena
There are several ways to calculate the distance from London to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 4553.174 miles
- 7327.623 kilometers
- 3956.600 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- 4539.646 miles
- 7305.851 kilometers
- 3944.844 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 Helena?
The estimated flight time from London Heathrow Airport to Helena Regional Airport is 9 hours and 7 minutes.
What is the time difference between London and Helena?
The time difference between London and Helena is 7 hours. Helena is 7 hours behind London.
Flight carbon footprint between London Heathrow Airport (LHR) and Helena Regional Airport (HLN)
On average, flying from London to Helena generates about 526 kg of CO2 per passenger, and 526 kilograms equals 1 160 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from London to Helena
See the map of the shortest flight path between London Heathrow Airport (LHR) and Helena Regional Airport (HLN).
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 | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States  |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |