How far is San Antonio, TX, from Houston, TX?
The distance between Houston (Houston George Bush Intercontinental Airport) and San Antonio (San Antonio International Airport) is 191 miles / 307 kilometers / 166 nautical miles.
The driving distance from Houston (IAH) to San Antonio (SAT) is 215 miles / 346 kilometers, and travel time by car is about 3 hours 52 minutes.
Houston George Bush Intercontinental Airport – San Antonio International Airport
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Distance from Houston to San Antonio
There are several ways to calculate the distance from Houston to San Antonio. Here are two standard 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 planet.
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).
How long does it take to fly from Houston to San Antonio?
The estimated flight time from Houston George Bush Intercontinental Airport to San Antonio International Airport is 51 minutes.
What is the time difference between Houston and San Antonio?
There is no time difference between Houston and San Antonio.
Flight carbon footprint between Houston George Bush Intercontinental Airport (IAH) and San Antonio International Airport (SAT)
On average, flying from Houston to San Antonio generates about 53 kg of CO2 per passenger, and 53 kilograms equals 117 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Houston to San Antonio
See the map of the shortest flight path between Houston George Bush Intercontinental Airport (IAH) and San Antonio International Airport (SAT).
Airport information
| Origin | Houston George Bush Intercontinental Airport |
|---|---|
| City: | Houston, TX |
| Country: | United States  |
| IATA Code: | IAH |
| ICAO Code: | KIAH |
| Coordinates: | 29°59′3″N, 95°20′29″W |
| Destination | San Antonio International Airport |
|---|---|
| City: | San Antonio, TX |
| Country: | United States |
| IATA Code: | SAT |
| ICAO Code: | KSAT |
| Coordinates: | 29°32′1″N, 98°28′11″W |
Airlines flying from Houston (IAH) to San Antonio (SAT)
| United Airlines |