Air Miles Calculator

Distance between Chattanooga, TN (CHA) and Chicago, IL (ORD)

Distance from Chattanooga Metropolitan Airport to O'Hare International Airport is 501 miles / 806 kilometers / 435 nautical miles.

Calculations with different 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).

Flight duration

Estimated flight time from Chattanooga Metropolitan Airport (CHA) to O'Hare International Airport (ORD) is 1 hour 26 minutes.

Time difference and current local times

The time difference between Chattanooga and Chicago is 1 hour. Chicago is 1 hour behind Chattanooga.

Time Difference

Chattanooga
Chicago

Chattanooga, TN

 EST

Chicago, IL

 CST

Airport information


A Chattanooga Metropolitan Airport
City: Chattanooga, TN
Country: United States Flag of United States
IATA Code: CHA
ICAO Code: KCHA
Coordinates: 35°2′7″N, 85°12′13″W

B O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

Map

Flight map from Chattanooga to Chicago.

Frequent Flyer Miles Calculator

Chattanooga (CHA) → Chicago (ORD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
501
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
501

Round trip?