There are
2,675 mi
from Ventura, CA to Gaithersburg, MD
That's the driving distance. It would take 1 day 23 hours to go from Ventura, California to Gaithersburg, Maryland.
The flight distance (direct flight from Ventura, CA to Gaithersburg, MD) is 2,331.19 mi.
2,675 mi = 4,304.24 kms