Map of flight path and driving directions from Chicago to Florence.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Florence Regional Airport (FLO).
How far is Florence from Chicago?
There are several ways to calculate distances between Chicago and Florence. Here are two common methods:Vincenty's formula (applied above)
- 697.722 miles
- 1122.875 kilometers
- 606.304 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
- 697.780 miles
- 1122.968 kilometers
- 606.354 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
The time difference between Chicago and Florence is 1 hour. Florence is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 124 kg (274 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Florence (FLO).