How far is Helena, MT, from Adelaide?
The distance between Adelaide (Adelaide Airport) and Helena (Helena Regional Airport) is 8780 miles / 14130 kilometers / 7629 nautical miles.
Adelaide Airport – Helena Regional Airport
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Distance from Adelaide to Helena
There are several ways to calculate the distance from Adelaide to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 8779.838 miles
- 14129.779 kilometers
- 7629.470 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- 8786.056 miles
- 14139.786 kilometers
- 7634.874 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 Adelaide to Helena?
The estimated flight time from Adelaide Airport to Helena Regional Airport is 17 hours and 7 minutes.
What is the time difference between Adelaide and Helena?
Flight carbon footprint between Adelaide Airport (ADL) and Helena Regional Airport (HLN)
On average, flying from Adelaide to Helena generates about 1 114 kg of CO2 per passenger, and 1 114 kilograms equals 2 456 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Adelaide to Helena
See the map of the shortest flight path between Adelaide Airport (ADL) and Helena Regional Airport (HLN).
Airport information
| Origin | Adelaide Airport |
|---|---|
| City: | Adelaide |
| Country: | Australia  |
| IATA Code: | ADL |
| ICAO Code: | YPAD |
| Coordinates: | 34°56′41″S, 138°31′51″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 |