How far is Decatur, IL, from Westerly, RI?
The distance between Westerly (Westerly State Airport) and Decatur (Decatur Airport) is 902 miles / 1452 kilometers / 784 nautical miles.
The driving distance from Westerly (WST) to Decatur (DEC) is 1041 miles / 1676 kilometers, and travel time by car is about 19 hours 55 minutes.
Westerly State Airport – Decatur Airport
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Distance from Westerly to Decatur
There are several ways to calculate the distance from Westerly to Decatur. Here are two standard methods:
Vincenty's formula (applied above)- 902.063 miles
- 1451.729 kilometers
- 783.871 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- 899.824 miles
- 1448.126 kilometers
- 781.926 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 Decatur?
The estimated flight time from Westerly State Airport to Decatur Airport is 2 hours and 12 minutes.
What is the time difference between Westerly and Decatur?
The time difference between Westerly and Decatur is 1 hour. Decatur is 1 hour behind Westerly.
Flight carbon footprint between Westerly State Airport (WST) and Decatur Airport (DEC)
On average, flying from Westerly to Decatur generates about 144 kg of CO2 per passenger, and 144 kilograms equals 317 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 Decatur
See the map of the shortest flight path between Westerly State Airport (WST) and Decatur Airport (DEC).
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 | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″W |