There are
2,611 mi
from Gaithersburg, MD to Alhambra, CA
That's the driving distance. It would take 1 day 22 hours to go from Gaithersburg, Maryland to Alhambra, California.
The flight distance (direct flight from Gaithersburg, MD to Alhambra, CA) is 2,276.74 mi.
2,611 mi = 4,202.08 kms