Map of flight path and driving directions from Chicago to San Antonio.
Shortest flight path between Chicago Midway International Airport (MDW) and San Antonio International Airport (SAT).
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)
- 1035.988 miles
- 1667.262 kilometers
- 900.249 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
- 1036.705 miles
- 1668.415 kilometers
- 900.872 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 Chicago and San Antonio.
San Antonio, TX
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 153 kg (337 pounds).
Frequent Flyer Miles Calculator
Chicago (MDW) → San Antonio (SAT).