How far is Flagstaff, AZ, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Flagstaff (Flagstaff Pulliam Airport) is 792 miles / 1274 kilometers / 688 nautical miles.
The driving distance from Helena (HLN) to Flagstaff (FLG) is 1007 miles / 1620 kilometers, and travel time by car is about 17 hours 43 minutes.
Helena Regional Airport – Flagstaff Pulliam Airport
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Distance from Helena to Flagstaff
There are several ways to calculate the distance from Helena to Flagstaff. Here are two standard methods:
Vincenty's formula (applied above)- 791.531 miles
- 1273.846 kilometers
- 687.822 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- 792.550 miles
- 1275.485 kilometers
- 688.707 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 Flagstaff?
The estimated flight time from Helena Regional Airport to Flagstaff Pulliam Airport is 1 hour and 59 minutes.
What is the time difference between Helena and Flagstaff?
The time difference between Helena and Flagstaff is 1 hour. Flagstaff is 1 hour behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Flagstaff Pulliam Airport (FLG)
On average, flying from Helena to Flagstaff generates about 134 kg of CO2 per passenger, and 134 kilograms equals 295 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 Flagstaff
See the map of the shortest flight path between Helena Regional Airport (HLN) and Flagstaff Pulliam Airport (FLG).
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 | Flagstaff Pulliam Airport |
|---|---|
| City: | Flagstaff, AZ |
| Country: | United States |
| IATA Code: | FLG |
| ICAO Code: | KFLG |
| Coordinates: | 35°8′18″N, 111°40′15″W |