There are
2,778 mi
from San Diego, CA to South Plainfield, NJ
That's the driving distance. It would take 2 days 2 hours to go from San Diego, California to South Plainfield, New Jersey.
The flight distance (direct flight from San Diego, CA to South Plainfield, NJ) is 2,406.48 mi.
2,778 mi = 3.22 kms