How far is Ontario, CA, from Houston, TX?
The distance between Houston (Houston George Bush Intercontinental Airport) and Ontario (Ontario International Airport) is 1334 miles / 2146 kilometers / 1159 nautical miles.
The driving distance from Houston (IAH) to Ontario (ONT) is 1523 miles / 2451 kilometers, and travel time by car is about 25 hours 56 minutes.
Houston George Bush Intercontinental Airport – Ontario International Airport
Search flights
Distance from Houston to Ontario
There are several ways to calculate the distance from Houston to Ontario. Here are two standard methods:
Vincenty's formula (applied above)- 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 planet.
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 – the shortest distance between two points).
How long does it take to fly from Houston to Ontario?
The estimated flight time from Houston George Bush Intercontinental Airport to Ontario International Airport is 3 hours and 1 minutes.
What is the time difference between Houston and Ontario?
The time difference between Houston and Ontario is 2 hours. Ontario is 2 hours behind Houston.
Flight carbon footprint between Houston George Bush Intercontinental Airport (IAH) and Ontario International Airport (ONT)
On average, flying from Houston to Ontario generates about 169 kg of CO2 per passenger, and 169 kilograms equals 373 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Houston to Ontario
See the map of the shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Ontario International Airport (ONT).
Airport information
| Origin | Houston George Bush Intercontinental Airport |
|---|---|
| City: | Houston, TX |
| Country: | United States  |
| IATA Code: | IAH |
| ICAO Code: | KIAH |
| Coordinates: | 29°59′3″N, 95°20′29″W |
| Destination | Ontario International Airport |
|---|---|
| City: | Ontario, CA |
| Country: | United States |
| IATA Code: | ONT |
| ICAO Code: | KONT |
| Coordinates: | 34°3′21″N, 117°36′3″W |
Airlines flying from Houston (IAH) to Ontario (ONT)
| United Airlines |