Calculations with different methods
- 801.784 miles
- 1290.347 kilometers
- 696.732 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
- 801.971 miles
- 1290.647 kilometers
- 696.894 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Dallas/Fort Worth International Airport (DFW) to O'Hare International Airport (ORD) is 2 hours 1 minutes.
Time difference and current local times
There is no time difference between Dallas and Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 122 kg (269 pounds).
Dallas to Chicago flight map.
Frequent Flyer Miles Calculator
Dallas (DFW) → Chicago (ORD).