How far is San Diego from Chicago?
There are several ways to calculate distances between Chicago and San Diego. Here are two common methods:Vincenty's formula (applied above)
- 1723.040 miles
- 2772.963 kilometers
- 1497.280 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
- 1720.000 miles
- 2768.072 kilometers
- 1494.639 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 Diego International Airport (SAN) is 3 hours 45 minutes.
Time difference and current local times
The time difference between Chicago and San Diego is 2 hours. San Diego is 2 hours behind Chicago.
San Diego, CA
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 203 kg (447 pounds).
Chicago to San Diego flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → San Diego (SAN).