Map of flight path and driving directions from Washington D.C. to Alamosa.
Shortest flight path between Washington Dulles International Airport (IAD) and San Luis Valley Regional Airport (ALS).
How far is Alamosa from Washington D.C.?
There are several ways to calculate distances between Washington D.C. and Alamosa. Here are two common methods:Vincenty's formula (applied above)
- 1543.826 miles
- 2484.547 kilometers
- 1341.548 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
- 1540.156 miles
- 2478.641 kilometers
- 1338.359 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 Washington D.C. and Alamosa is 2 hours. Alamosa is 2 hours behind Washington D.C..
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 182 kg (402 pounds).
Frequent Flyer Miles Calculator
Washington D.C. (IAD) → Alamosa (ALS).