There are
2,632 mi
from Escondido, CA to Rockville, MD
That's the driving distance. It would take 1 day 23 hours to go from Escondido, California to Rockville, Maryland.
The flight distance (direct flight from Escondido, CA to Rockville, MD) is 2,248.60 mi.
2,632 mi = 4,235.12 kms