There are
2,850 mi
from Rosemead, CA to West Haven, CT
That's the driving distance. It would take 2 days 3 hours to go from Rosemead, California to West Haven, Connecticut.
The flight distance (direct flight from Rosemead, CA to West Haven, CT) is 2,488.57 mi.
2,850 mi = 4,586.54 kms