Calculations with different methods
- 1725.694 miles
- 2777.235 kilometers
- 1499.587 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
- 1722.397 miles
- 2771.929 kilometers
- 1496.722 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from O'Hare International Airport (ORD) to John Wayne Airport (SNA) is 3 hours 46 minutes.
Time difference and current local times
The time difference between Chicago and Santa Ana is 2 hours. Santa Ana is 2 hours behind Chicago.
Santa Ana, CA
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 203 kg (448 pounds).
Chicago to Santa Ana flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Santa Ana (SNA).