How far is Westerly, RI, from Decatur, IL?
The distance between Decatur (Decatur Airport) and Westerly (Westerly State Airport) is 902 miles / 1452 kilometers / 784 nautical miles.
The driving distance from Decatur (DEC) to Westerly (WST) is 1039 miles / 1672 kilometers, and travel time by car is about 19 hours 52 minutes.
Decatur Airport – Westerly State Airport
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Distance from Decatur to Westerly
There are several ways to calculate the distance from Decatur to Westerly. 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 Decatur to Westerly?
The estimated flight time from Decatur Airport to Westerly State Airport is 2 hours and 12 minutes.
What is the time difference between Decatur and Westerly?
The time difference between Decatur and Westerly is 1 hour. Westerly is 1 hour ahead of Decatur.
Flight carbon footprint between Decatur Airport (DEC) and Westerly State Airport (WST)
On average, flying from Decatur to Westerly 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 Decatur to Westerly
See the map of the shortest flight path between Decatur Airport (DEC) and Westerly State Airport (WST).
Airport information
| Origin | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States  |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″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 |