There are 1,144.96 miles from Oklahoma City to Ontario in west direction and 1,292 miles (2,079.27 kilometers) by car, following the I-40 and US-84 W route.
Oklahoma City and Ontario are 18 hours 9 mins far apart, if you drive non-stop .
This is the fastest route from Oklahoma City, OK to Ontario, CA. The halfway point is Prewitt, NM.
Please note the time difference between Oklahoma City, OK and Ontario, CA is 2 hours. The current time in Oklahoma City is 5:49 pm and the current time in Ontario is 3:49 pm.
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