Map of flight path and driving directions from Dallas to Ontario.
Shortest flight path between Dallas/Fort Worth International Airport (DFW) and Ontario International Airport (ONT).
How far is Ontario from Dallas?
There are several ways to calculate distances between Dallas and Ontario. Here are two common methods:Vincenty's formula (applied above)
- 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 – the shortest distance between two points).
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 161 kg (355 pounds).
Frequent Flyer Miles Calculator
Dallas (DFW) → Ontario (ONT).