How far is Westerly, RI, from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and Westerly (Westerly State Airport) is 1981 miles / 3188 kilometers / 1721 nautical miles.
The driving distance from Great Falls (GTF) to Westerly (WST) is 2308 miles / 3715 kilometers, and travel time by car is about 42 hours 41 minutes.
Great Falls International Airport – Westerly State Airport
Search flights
Distance from Great Falls to Westerly
There are several ways to calculate the distance from Great Falls to Westerly. Here are two standard methods:
Vincenty's formula (applied above)- 1980.792 miles
- 3187.776 kilometers
- 1721.261 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- 1975.650 miles
- 3179.501 kilometers
- 1716.793 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 Great Falls to Westerly?
The estimated flight time from Great Falls International Airport to Westerly State Airport is 4 hours and 15 minutes.
What is the time difference between Great Falls and Westerly?
Flight carbon footprint between Great Falls International Airport (GTF) and Westerly State Airport (WST)
On average, flying from Great Falls to Westerly generates about 216 kg of CO2 per passenger, and 216 kilograms equals 476 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Great Falls to Westerly
See the map of the shortest flight path between Great Falls International Airport (GTF) and Westerly State Airport (WST).
Airport information
| Origin | Great Falls International Airport |
|---|---|
| City: | Great Falls, MT |
| Country: | United States  |
| IATA Code: | GTF |
| ICAO Code: | KGTF |
| Coordinates: | 47°28′55″N, 111°22′15″W |
| Destination | Westerly State Airport |
|---|---|
| City: | Westerly, RI |
| Country: | United States |
| IATA Code: | WST |
| ICAO Code: | KWST |
| Coordinates: | 41°20′58″N, 71°48′12″W |