How far is Saint John from Chicago?
There are several ways to calculate distances between Chicago and Saint John. Here are two common methods:Vincenty's formula (applied above)
- 1123.669 miles
- 1808.370 kilometers
- 976.442 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
- 1120.789 miles
- 1803.736 kilometers
- 973.939 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 Saint John Airport (YSJ) is 2 hours 37 minutes.
Time difference and current local times
The time difference between Chicago and Saint John is 2 hours. Saint John is 2 hours ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 158 kg (348 pounds).
Chicago to Saint John flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Saint John (YSJ).