Map of flight path and driving directions from Houston to San Antonio.
Shortest flight path between Houston William P. Hobby Airport (HOU) and San Antonio International Airport (SAT).
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)
- 192.237 miles
- 309.375 kilometers
- 167.049 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
- 191.867 miles
- 308.780 kilometers
- 166.728 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
There is no time difference between Houston and San Antonio.
San Antonio, TX
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 52 kg (114 pounds).
Frequent Flyer Miles Calculator
Houston (HOU) → San Antonio (SAT).