How far is Helena, MT, from Westerly, RI?
The distance between Westerly (Westerly State Airport) and Helena (Helena Regional Airport) is 2013 miles / 3240 kilometers / 1749 nautical miles.
The driving distance from Westerly (WST) to Helena (HLN) is 2395 miles / 3854 kilometers, and travel time by car is about 43 hours 48 minutes.
Westerly State Airport – Helena Regional Airport
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Distance from Westerly to Helena
There are several ways to calculate the distance from Westerly to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 2013.252 miles
- 3240.015 kilometers
- 1749.468 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- 2007.988 miles
- 3231.543 kilometers
- 1744.894 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 Westerly to Helena?
The estimated flight time from Westerly State Airport to Helena Regional Airport is 4 hours and 18 minutes.
What is the time difference between Westerly and Helena?
The time difference between Westerly and Helena is 2 hours. Helena is 2 hours behind Westerly.
Flight carbon footprint between Westerly State Airport (WST) and Helena Regional Airport (HLN)
On average, flying from Westerly to Helena generates about 219 kg of CO2 per passenger, and 219 kilograms equals 483 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Westerly to Helena
See the map of the shortest flight path between Westerly State Airport (WST) and Helena Regional Airport (HLN).
Airport information
| Origin | Westerly State Airport |
|---|---|
| City: | Westerly, RI |
| Country: | United States  |
| IATA Code: | WST |
| ICAO Code: | KWST |
| Coordinates: | 41°20′58″N, 71°48′12″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 |