Map of flight path and driving directions from Chicago to Chattanooga.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Chattanooga Metropolitan Airport (CHA).
How far is Chattanooga from Chicago?
There are several ways to calculate distances between Chicago and Chattanooga. Here are two common methods:Vincenty's formula (applied above)
- 500.719 miles
- 805.828 kilometers
- 435.113 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
- 501.395 miles
- 806.916 kilometers
- 435.700 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 Chattanooga is 1 hour. Chattanooga is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 99 kg (218 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Chattanooga (CHA).