Calculations with different methods
- 1463.613 miles
- 2355.457 kilometers
- 1271.845 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
- 1460.049 miles
- 2349.721 kilometers
- 1268.748 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Colorado Springs Airport (COS) to Washington Dulles International Airport (IAD) is 3 hours 16 minutes.
Time difference and current local times
The time difference between Colorado Springs and Washington D.C. is 2 hours. Washington D.C. is 2 hours ahead of Colorado Springs.
Colorado Springs, CO
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 180 kg (397 pounds).
Colorado Springs to Washington D.C. flight map.
Frequent Flyer Miles Calculator
Colorado Springs (COS) → Washington D.C. (IAD).