There are
2,997 mi
from Boston, MA to Rancho Santa Margarita, CA
That's the driving distance. It would take 2 days 5 hours to go from Boston, Massachusetts to Rancho Santa Margarita, California.
The flight distance (direct flight from Boston, MA to Rancho Santa Margarita, CA) is 2,571.19 mi.
2,997 mi = 3.22 kms