Air Miles Calculator

Distance between San Antonio, TX (SAT) and Houston, TX (IAH)

Flight distance from San Antonio to Houston (San Antonio International Airport – Houston George Bush Intercontinental Airport) is 191 miles / 307 kilometers / 166 nautical miles. Estimated flight time is 51 minutes.

Driving distance from San Antonio (SAT) to Houston (IAH) is 215 miles / 346 kilometers and travel time by car is about 3 hours 49 minutes.

Map of flight path and driving directions from San Antonio to Houston.

Shortest flight path between San Antonio International Airport (SAT) and Houston George Bush Intercontinental Airport (IAH).

How far is Houston from San Antonio?

There are several ways to calculate distances between San Antonio and Houston. 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).

Airport information


A San Antonio International Airport
City: San Antonio, TX
Country: United States Flag of United States
IATA Code: SAT
ICAO Code: KSAT
Coordinates: 29°32′1″N, 98°28′11″W

B Houston George Bush Intercontinental Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″W

Time difference and current local times

There is no time difference between San Antonio and Houston.

Time Difference

San Antonio, TX

 CDT

Houston, TX

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 51 kg (113 pounds).

Frequent Flyer Miles Calculator

San Antonio (SAT) → Houston (IAH).

Distance:
191
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
191

Round trip?