Miles between Ontario, CA and Hillsboro, OR

There are
999 mi
from Ontario, CA to Hillsboro, OR

That's the driving distance. It would take 19 hours 3 mins to go from Ontario, California to Hillsboro, Oregon.

The flight distance (direct flight from Ontario, CA to Hillsboro, OR) is 840.48 mi.

999 mi = 1,607.86 kms