How far is Decatur, IL, from Williston, ND?
The distance between Williston (Williston Basin International Airport) and Decatur (Decatur Airport) is 939 miles / 1512 kilometers / 816 nautical miles.
The driving distance from Williston (XWA) to Decatur (DEC) is 1136 miles / 1829 kilometers, and travel time by car is about 21 hours 2 minutes.
Williston Basin International Airport – Decatur Airport
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Distance from Williston to Decatur
There are several ways to calculate the distance from Williston to Decatur. Here are two standard methods:
Vincenty's formula (applied above)- 939.311 miles
- 1511.675 kilometers
- 816.239 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- 937.997 miles
- 1509.560 kilometers
- 815.097 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 Williston to Decatur?
The estimated flight time from Williston Basin International Airport to Decatur Airport is 2 hours and 16 minutes.
What is the time difference between Williston and Decatur?
The time difference between Williston and Decatur is 1 hour. Decatur is 1 hour ahead of Williston.
Flight carbon footprint between Williston Basin International Airport (XWA) and Decatur Airport (DEC)
On average, flying from Williston to Decatur generates about 147 kg of CO2 per passenger, and 147 kilograms equals 323 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Williston to Decatur
See the map of the shortest flight path between Williston Basin International Airport (XWA) and Decatur Airport (DEC).
Airport information
| Origin | Williston Basin International Airport |
|---|---|
| City: | Williston, ND |
| Country: | United States  |
| IATA Code: | XWA |
| ICAO Code: | KXWA |
| Coordinates: | 48°15′30″N, 103°44′55″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 |