Calculations with different methods
- 1188.303 miles
- 1912.388 kilometers
- 1032.607 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
- 1185.790 miles
- 1908.345 kilometers
- 1030.424 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 Ontario International Airport (ONT) is 2 hours 44 minutes.
Time difference and current local times
The time difference between Dallas and Ontario is 2 hours. Ontario is 2 hours behind Dallas.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 157 kg (345 pounds).
Dallas to Ontario flight map.
Frequent Flyer Miles Calculator
Dallas (DFW) → Ontario (ONT).