Distance between St. George UT and Ontario CA
The distance from St. George to Ontario is 352 miles by road including 290 miles on motorways. Road takes approximately 9 hours and 7 minutes and goes through North Las Vegas, Las Vegas, Victorville, Fontana and Rancho Cucamonga.
| Shortest distance by air | 310 mi ✈️ |
| Car route length | 352.3 mi 🚗 |
| Driving time | 9 h 7 min |
| Fuel amount | 12 gal |
| Fuel cost | 41.7 USD |
| Point | Distance | Time | Fuel | |
| St. George | 0 mi | 00 min | 0.0 gal | |
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I 15 39 mi, 40 min
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| Mesquite | 39 mi | 40 min | 1.0 gal | |
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I 15 24 mi, 44 min
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| Moapa Valley | 63 mi | 1 h 24 min | 1.9 gal | |
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I 15 48 mi, 1 h 05 min
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| North Las Vegas | 111 mi | 2 h 30 min | 3.5 gal | |
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I 15 9 mi, 09 min
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| Las Vegas | 119 mi | 2 h 39 min | 4.0 gal | |
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I 15 4 mi, 08 min
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| Paradise | 124 mi | 2 h 48 min | 4.2 gal | |
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I 15 183 mi, 4 h 48 min
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| Victorville | 306 mi | 7 h 36 min | 10.2 gal | |
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I 15 29 mi, 1 h 00 min
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| Fontana | 336 mi | 8 h 36 min | 11.4 gal | |
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I 15 5 mi, 10 min
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| Rancho Cucamonga | 341 mi | 8 h 46 min | 11.4 gal | |
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I 15 8 mi, 15 min
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| Ontario | 349 mi | 9 h 02 min | 11.7 gal | |
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I 10 3 mi, 04 min
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| 34.06584, -117.64843 | 352 mi | 9 h 07 min | 12.0 gal | |
Hotels of Ontario
Frequently Asked Questions
How much does it cost to drive from St. George to Ontario?
Fuel cost: 41.7 USD
This fuel cost is calculated as: (Route length 352.3 mi) / (Fuel consumption 29.4 mpg) * (Fuel price 3.48 USD / gal)
You can adjust fuel consumption and fuel price here.
How long is a car ride from St. George to Ontario?
Driving time: 9 h 7 min
This time is calculated for driving at the maximum permitted speed, taking into account traffic rules restrictions.
- 244 mi with a maximum speed 68 mph = 3 h 34 min
- 32 mi with a maximum speed 65 mph = 29 min
- 12 mi with a maximum speed 55 mph = 13 min
- 4 mi with a maximum speed 50 mph = 4 min
- 1 mi with a maximum speed 30 mph = 1 min
- 58 mi with a maximum speed 12 mph = 4 h 41 min
The calculated driving time does not take into account intermediate stops and traffic jams.
How far is St. George to Ontario by land?
The distance between St. George and Ontario is 352.3 mi by road including 290.2 mi on motorways.
Precise satellite coordinates of highways were used for this calculation. The start and finish points are the centers of St. George and Ontario respectively.
How far is St. George to Ontario by plane?
The shortest distance (air line, as the crow flies) between St. George and Ontario is 310.1 mi.
This distance is calculated using the Haversine formula as a great-circle distance between two points on the surface of a sphere. The start and finish points are the centers of St. George and Ontario respectively. Actual distance between airports may be different.
How many hours is St. George from Ontario by plane?
Boeing 737 airliner needs 37 min to cover the distance of 310 mi at a cruising speed of 497 mph.
Small plane "Cessna 172" needs 2 h 16 min to flight this distance at average speed of 136 mph.
This time is approximate and do not take into account takeoff and landing times, airport location and other real world factors.
How long is a helicopter ride from St. George to Ontario?
Fast helicopter "Eurocopter AS350" or "Hughes OH-6 Cayuse" need 2 h 4 min to cover the distance of 310 mi at a cruising speed of 149 mph.
Popular "Robinson R44" needs 2 h 22 min to flight this distance at average speed of 130 mph.
This time is approximate and do not take into account takeoff and landing times, aerodrome location and other real world factors.
What city is halfway between St. George and Ontario?
The halfway point between St. George and Ontario is Mountain Pass.
The distance from Mountain Pass to St. George is 176 mi and driving will take about 3 h 41 min. The road between Mountain Pass and Ontario has length 176 mi and will take approximately 5 h 26 min.
The other cities located close to halfway point:
Where is St. George in relation to Ontario?
St. George is located 310 mi north-east of Ontario.
St. George has geographic coordinates: latitude 37.10414, longitude -113.58413.
Ontario has geographic coordinates: latitude 34.06584, longitude -117.64843.
Which highway goes from St. George to Ontario?
The route from St. George to Ontario follows I 15.
Other minor sections pass along the road:
- US 93: 21 mi
- I 10: 2 mi
- CA 18: 1 mi
- I 15 Business: 1 mi