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Ontario–Houston | ONT–IAH
Calculations with different methods
- 1333.600 miles
- 2146.221 kilometers
- 1158.867 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
- 1331.142 miles
- 2142.265 kilometers
- 1156.730 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Ontario International Airport (ONT) to George Bush Intercontinental Airport (IAH) is 3 hours 1 minutes.
Time difference and current local times
The time difference between Ontario and Houston is 2 hours. Houston is 2 hours ahead of Ontario.
Ontario to Houston flight map.
Frequent Flyer Miles Calculator
Ontario (ONT) → Houston (IAH).