How far is Helena, MT, from Grayling, AK?
The distance between Grayling (Grayling Airport) and Helena (Helena Regional Airport) is 2157 miles / 3471 kilometers / 1874 nautical miles.
The driving distance from Grayling (KGX) to Helena (HLN) is 2948 miles / 4745 kilometers, and travel time by car is about 110 hours 54 minutes.
Grayling Airport – Helena Regional Airport
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Distance from Grayling to Helena
There are several ways to calculate the distance from Grayling to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 2157.007 miles
- 3471.366 kilometers
- 1874.388 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- 2151.173 miles
- 3461.978 kilometers
- 1869.319 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 Grayling to Helena?
The estimated flight time from Grayling Airport to Helena Regional Airport is 4 hours and 35 minutes.
What is the time difference between Grayling and Helena?
The time difference between Grayling and Helena is 2 hours. Helena is 2 hours ahead of Grayling.
Flight carbon footprint between Grayling Airport (KGX) and Helena Regional Airport (HLN)
On average, flying from Grayling to Helena generates about 235 kg of CO2 per passenger, and 235 kilograms equals 519 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Grayling to Helena
See the map of the shortest flight path between Grayling Airport (KGX) and Helena Regional Airport (HLN).
Airport information
| Origin | Grayling Airport |
|---|---|
| City: | Grayling, AK |
| Country: | United States  |
| IATA Code: | KGX |
| ICAO Code: | PAGX |
| Coordinates: | 62°53′42″N, 160°3′58″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 |