How far is Alamosa, CO, from Decatur, IL?
The distance between Decatur (Decatur Airport) and Alamosa (San Luis Valley Regional Airport) is 933 miles / 1502 kilometers / 811 nautical miles.
The driving distance from Decatur (DEC) to Alamosa (ALS) is 1104 miles / 1777 kilometers, and travel time by car is about 20 hours 14 minutes.
Decatur Airport – San Luis Valley Regional Airport
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Distance from Decatur to Alamosa
There are several ways to calculate the distance from Decatur to Alamosa. Here are two standard methods:
Vincenty's formula (applied above)- 933.098 miles
- 1501.675 kilometers
- 810.840 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- 930.959 miles
- 1498.233 kilometers
- 808.981 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 Alamosa?
The estimated flight time from Decatur Airport to San Luis Valley Regional Airport is 2 hours and 16 minutes.
What is the time difference between Decatur and Alamosa?
The time difference between Decatur and Alamosa is 1 hour. Alamosa is 1 hour behind Decatur.
Flight carbon footprint between Decatur Airport (DEC) and San Luis Valley Regional Airport (ALS)
On average, flying from Decatur to Alamosa generates about 146 kg of CO2 per passenger, and 146 kilograms equals 322 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 Alamosa
See the map of the shortest flight path between Decatur Airport (DEC) and San Luis Valley Regional Airport (ALS).
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 | San Luis Valley Regional Airport |
|---|---|
| City: | Alamosa, CO |
| Country: | United States |
| IATA Code: | ALS |
| ICAO Code: | KALS |
| Coordinates: | 37°26′5″N, 105°52′1″W |