Air Miles Calculator

Distance between Chicago, IL (ORD) and Alamosa, CO (ALS)

Flight distance from Chicago to Alamosa (Chicago O'Hare International Airport – San Luis Valley Regional Airport) is 1005 miles / 1617 kilometers / 873 nautical miles. Estimated flight time is 2 hours 24 minutes.

Driving distance from Chicago (ORD) to Alamosa (ALS) is 1233 miles / 1985 kilometers and travel time by car is about 20 hours 42 minutes.

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).

Airport information


A Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

B San Luis Valley Regional Airport
City: Alamosa, CO
Country: United States Flag of United States
IATA Code: ALS
ICAO Code: KALS
Coordinates: 37°26′5″N, 105°52′1″W

Time difference and current local times

The time difference between Chicago and Alamosa is 1 hour. Alamosa is 1 hour behind Chicago.

Time Difference

Chicago, IL

 CST

Alamosa, CO

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 151 kg (333 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → Alamosa (ALS).

Distance:
1005
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1005

Round trip?