There are
2,634 mi
from Redondo Beach, CA to Gaithersburg, MD
That's the driving distance. It would take 1 day 23 hours to go from Redondo Beach, California to Gaithersburg, Maryland.
The flight distance (direct flight from Redondo Beach, CA to Gaithersburg, MD) is 2,296.82 mi.
2,634 mi = 4,239.50 kms