There are
2,901 mi
from New Britain, CT to El Cajon, CA
That's the driving distance. It would take 2 days 4 hours to go from New Britain, Connecticut to El Cajon, California.
The flight distance (direct flight from New Britain, CT to El Cajon, CA) is 2,478.08 mi.
2,901 mi = 4,668.52 kms