How far is Helena, MT, from Cairns?
The distance between Cairns (Cairns Airport) and Helena (Helena Regional Airport) is 7634 miles / 12286 kilometers / 6634 nautical miles.
Cairns Airport – Helena Regional Airport
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Distance from Cairns to Helena
There are several ways to calculate the distance from Cairns to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 7634.217 miles
- 12286.081 kilometers
- 6633.953 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- 7636.839 miles
- 12290.301 kilometers
- 6636.232 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 Cairns to Helena?
The estimated flight time from Cairns Airport to Helena Regional Airport is 14 hours and 57 minutes.
What is the time difference between Cairns and Helena?
The time difference between Cairns and Helena is 17 hours. Helena is 17 hours behind Cairns.
Flight carbon footprint between Cairns Airport (CNS) and Helena Regional Airport (HLN)
On average, flying from Cairns to Helena generates about 945 kg of CO2 per passenger, and 945 kilograms equals 2 084 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Cairns to Helena
See the map of the shortest flight path between Cairns Airport (CNS) and Helena Regional Airport (HLN).
Airport information
| Origin | Cairns Airport |
|---|---|
| City: | Cairns |
| Country: | Australia  |
| IATA Code: | CNS |
| ICAO Code: | YBCS |
| Coordinates: | 16°53′8″S, 145°45′18″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 |