How far is San Antonio from Chicago?
There are several ways to calculate distances between Chicago and San Antonio. Here are two common methods:Vincenty's formula (applied above)
- 1041.534 miles
- 1676.186 kilometers
- 905.068 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
- 1042.305 miles
- 1677.427 kilometers
- 905.738 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 O'Hare International Airport (ORD) to San Antonio International Airport (SAT) is 2 hours 28 minutes.
Time difference and current local times
There is no time difference between Chicago and San Antonio.
San Antonio, TX
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 144 kg (317 pounds).
Chicago to San Antonio flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → San Antonio (SAT).