There are
2,584 mi
from Palmdale, CA to Gaithersburg, MD
That's the driving distance. It would take 1 day 22 hours to go from Palmdale, California to Gaithersburg, Maryland.
The flight distance (direct flight from Palmdale, CA to Gaithersburg, MD) is 2,264.40 mi.
2,584 mi = 4,158.57 kms