Map of flight path and driving directions from Chicago to Alamosa.
Shortest flight path between Chicago O'Hare International Airport (ORD) and San Luis Valley Regional Airport (ALS).
How far is Alamosa from Chicago?
There are several ways to calculate distances between Chicago and Alamosa. Here are two common methods:Vincenty's formula (applied above)
- 1004.923 miles
- 1617.267 kilometers
- 873.254 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.Haversine formula
- 1002.818 miles
- 1613.880 kilometers
- 871.425 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).
Time difference and current local times
The time difference between Chicago and Alamosa is 1 hour. Alamosa is 1 hour behind Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 151 kg (333 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Alamosa (ALS).