How far is St George, UT, from Ontario, CA?
The distance between Ontario (Ontario International Airport) and St George (St. George Municipal Airport) is 309 miles / 497 kilometers / 268 nautical miles.
The driving distance from Ontario (ONT) to St George (SGU) is 353 miles / 568 kilometers, and travel time by car is about 6 hours 28 minutes.
Ontario International Airport – St. George Municipal Airport
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Distance from Ontario to St George
There are several ways to calculate the distance from Ontario to St George. Here are two standard methods:
Vincenty's formula (applied above)- 308.716 miles
- 496.830 kilometers
- 268.267 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- 308.631 miles
- 496.694 kilometers
- 268.193 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 Ontario to St George?
The estimated flight time from Ontario International Airport to St. George Municipal Airport is 1 hour and 5 minutes.
What is the time difference between Ontario and St George?
The time difference between Ontario and St George is 1 hour. St George is 1 hour ahead of Ontario.
Flight carbon footprint between Ontario International Airport (ONT) and St. George Municipal Airport (SGU)
On average, flying from Ontario to St George generates about 70 kg of CO2 per passenger, and 70 kilograms equals 155 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Ontario to St George
See the map of the shortest flight path between Ontario International Airport (ONT) and St. George Municipal Airport (SGU).
Airport information
| Origin | Ontario International Airport |
|---|---|
| City: | Ontario, CA |
| Country: | United States  |
| IATA Code: | ONT |
| ICAO Code: | KONT |
| Coordinates: | 34°3′21″N, 117°36′3″W |
| Destination | St. George Municipal Airport |
|---|---|
| City: | St George, UT |
| Country: | United States |
| IATA Code: | SGU |
| ICAO Code: | KSGU |
| Coordinates: | 37°2′11″N, 113°30′37″W |