How far is Helena, MT, from London?
The distance between London (London City Airport) and Helena (Helena Regional Airport) is 4567 miles / 7350 kilometers / 3969 nautical miles.
London City 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)- 4567.066 miles
- 7349.981 kilometers
- 3968.672 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- 4553.496 miles
- 7328.141 kilometers
- 3956.879 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 City Airport to Helena Regional Airport is 9 hours and 8 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 City Airport (LCY) and Helena Regional Airport (HLN)
On average, flying from London to Helena generates about 528 kg of CO2 per passenger, and 528 kilograms equals 1 164 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 City Airport (LCY) and Helena Regional Airport (HLN).
Airport information
| Origin | London City Airport |
|---|---|
| City: | London |
| Country: | United Kingdom  |
| IATA Code: | LCY |
| ICAO Code: | EGLC |
| Coordinates: | 51°30′19″N, 0°3′19″E |
| 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 |