How far is San Antonio from Houston?
There are several ways to calculate distances between Houston and San Antonio. Here are two common methods:Vincenty's formula (applied above)
- 190.550 miles
- 306.661 kilometers
- 165.583 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
- 190.206 miles
- 306.106 kilometers
- 165.284 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).
Estimated flight time from George Bush Intercontinental Airport (IAH) to San Antonio International Airport (SAT) is 51 minutes.
Time difference and current local times
There is no time difference between Houston and San Antonio.
San Antonio, TX
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 51 kg (113 pounds).
Houston to San Antonio flight map.
Frequent Flyer Miles Calculator
Houston (IAH) → San Antonio (SAT).