Calculations with different methods
- 798.248 miles
- 1284.655 kilometers
- 693.658 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
- 798.477 miles
- 1285.024 kilometers
- 693.858 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from O'Hare International Airport (ORD) to Dallas Love Field (DAL) is 2 hours 0 minutes.
Time difference and current local times
There is no time difference between Chicago and Dallas.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 122 kg (269 pounds).
Chicago to Dallas flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Dallas (DAL).