There are
2,718 mi
from Ontario, CA to Hopatcong, NJ
That's the driving distance. It would take 2 days to go from Ontario, California to Hopatcong, New Jersey.
The flight distance (direct flight from Ontario, CA to Hopatcong, NJ) is 2,379.36 mi.
2,718 mi = 4,373.40 kms