There are
2,838 mi
from Danbury, CT to Rancho Santa Margarita, CA
That's the driving distance. It would take 2 days 2 hours to go from Danbury, Connecticut to Rancho Santa Margarita, California.
The flight distance (direct flight from Danbury, CT to Rancho Santa Margarita, CA) is 2,450.57 mi.
2,838 mi = 3.22 kms