Calculations with different methods
- 793.545 miles
- 1277.087 kilometers
- 689.572 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
- 793.388 miles
- 1276.834 kilometers
- 689.435 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from George Bush Intercontinental Airport (IAH) to San Luis Valley Regional Airport (ALS) is 2 hours 0 minutes.
Time difference and current local times
The time difference between Houston and Alamosa is 1 hour. Alamosa is 1 hour behind Houston.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 121 kg (268 pounds).
Houston to Alamosa flight map.
Frequent Flyer Miles Calculator
Houston (IAH) → Alamosa (ALS).