There are
2,910 mi
from Redwood City, CA to Haddonfield, NJ
That's the driving distance. It would take 2 days 3 hours to go from Redwood City, California to Haddonfield, New Jersey.
The flight distance (direct flight from Redwood City, CA to Haddonfield, NJ) is 2,521.18 mi.
2,910 mi = 4,682.58 kms