How far is Grayling, AK, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Grayling (Grayling Airport) is 2157 miles / 3471 kilometers / 1874 nautical miles.
The driving distance from Helena (HLN) to Grayling (KGX) is 2942 miles / 4735 kilometers, and travel time by car is about 110 hours 48 minutes.
Helena Regional Airport – Grayling Airport
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Distance from Helena to Grayling
There are several ways to calculate the distance from Helena to Grayling. 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 Helena to Grayling?
The estimated flight time from Helena Regional Airport to Grayling Airport is 4 hours and 35 minutes.
What is the time difference between Helena and Grayling?
The time difference between Helena and Grayling is 2 hours. Grayling is 2 hours behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Grayling Airport (KGX)
On average, flying from Helena to Grayling 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 Helena to Grayling
See the map of the shortest flight path between Helena Regional Airport (HLN) and Grayling Airport (KGX).
Airport information
| Origin | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States  |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |
| Destination | Grayling Airport |
|---|---|
| City: | Grayling, AK |
| Country: | United States |
| IATA Code: | KGX |
| ICAO Code: | PAGX |
| Coordinates: | 62°53′42″N, 160°3′58″W |