Air Miles Calculator

Distance between Washington D.C. (IAD) and Alamosa, CO (ALS)

Flight distance from Washington D.C. to Alamosa (Washington Dulles International Airport – San Luis Valley Regional Airport) is 1544 miles / 2485 kilometers / 1342 nautical miles. Estimated flight time is 3 hours 25 minutes.

Driving distance from Washington D.C. (IAD) to Alamosa (ALS) is 1739 miles / 2799 kilometers and travel time by car is about 31 hours 1 minutes.

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).

Airport information


A Washington Dulles International Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″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 Washington D.C. and Alamosa is 2 hours. Alamosa is 2 hours behind Washington D.C..

Time Difference

Washington D.C.

 EDT

Alamosa, CO

 MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 182 kg (402 pounds).

Frequent Flyer Miles Calculator

Washington D.C. (IAD) → Alamosa (ALS).

Distance:
1544
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1544

Round trip?