How far is Petersburg from Chicago?
There are several ways to calculate distances between Chicago and Petersburg. Here are two common methods:Vincenty's formula (applied above)
- 2221.946 miles
- 3575.876 kilometers
- 1930.819 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
- 2216.573 miles
- 3567.228 kilometers
- 1926.149 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 Chicago O'Hare International Airport (ORD) to Petersburg James A. Johnson Airport (PSG) is 4 hours 42 minutes.
Time difference and current local times
The time difference between Chicago and Petersburg is 3 hours. Petersburg is 3 hours behind Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 247 kg (544 pounds).
Chicago to Petersburg flight path
Shortest flight path between Chicago O'Hare International Airport (ORD) and Petersburg James A. Johnson Airport (PSG).
Frequent Flyer Miles Calculator
Chicago (ORD) → Petersburg (PSG).