How far is Decatur, IL, from Montgomery, AL?
The distance between Montgomery (Montgomery Regional Airport) and Decatur (Decatur Airport) is 537 miles / 865 kilometers / 467 nautical miles.
The driving distance from Montgomery (MGM) to Decatur (DEC) is 654 miles / 1053 kilometers, and travel time by car is about 12 hours 15 minutes.
Montgomery Regional Airport – Decatur Airport
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Distance from Montgomery to Decatur
There are several ways to calculate the distance from Montgomery to Decatur. Here are two standard methods:
Vincenty's formula (applied above)- 537.496 miles
- 865.016 kilometers
- 467.071 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- 538.476 miles
- 866.593 kilometers
- 467.923 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 Montgomery to Decatur?
The estimated flight time from Montgomery Regional Airport to Decatur Airport is 1 hour and 31 minutes.
What is the time difference between Montgomery and Decatur?
Flight carbon footprint between Montgomery Regional Airport (MGM) and Decatur Airport (DEC)
On average, flying from Montgomery to Decatur generates about 104 kg of CO2 per passenger, and 104 kilograms equals 230 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Montgomery to Decatur
See the map of the shortest flight path between Montgomery Regional Airport (MGM) and Decatur Airport (DEC).
Airport information
| Origin | Montgomery Regional Airport |
|---|---|
| City: | Montgomery, AL |
| Country: | United States  |
| IATA Code: | MGM |
| ICAO Code: | KMGM |
| Coordinates: | 32°18′2″N, 86°23′38″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 |