Distance between Chicago, IL (ORD) and Chattanooga, TN (CHA)
Flight distance from Chicago to Chattanooga (Chicago O'Hare International Airport – Chattanooga Metropolitan Airport) is 501 miles / 806 kilometers / 435 nautical miles. Estimated flight time is 1 hour 26 minutes.
Driving distance from Chicago (ORD) to Chattanooga (CHA) is 590 miles / 949 kilometers and travel time by car is about 10 hours 54 minutes.
Calculate Distance
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Multiple airports
Chicago - Chattanooga
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).
Airport information
| A | Chicago O'Hare International Airport |
|---|---|
| City: | Chicago, IL |
| Country: | United States  |
| IATA Code: | ORD |
| ICAO Code: | KORD |
| Coordinates: | 41°58′42″N, 87°54′17″W |
| B | Chattanooga Metropolitan Airport |
|---|---|
| City: | Chattanooga, TN |
| Country: | United States |
| IATA Code: | CHA |
| ICAO Code: | KCHA |
| Coordinates: | 35°2′7″N, 85°12′13″W |
Time difference and current local times
The time difference between Chicago and Chattanooga is 1 hour. Chattanooga is 1 hour ahead of Chicago.
Time Difference
Chicago, IL
Chattanooga, TN
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 99 kg (218 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Chattanooga (CHA).
In total
Round trip?