There are
2,612 mi
from Gaithersburg, MD to Pico Rivera, CA
That's the driving distance. It would take 1 day 22 hours to go from Gaithersburg, Maryland to Pico Rivera, California.
The flight distance (direct flight from Gaithersburg, MD to Pico Rivera, CA) is 2,277.92 mi.
2,612 mi = 4,202.92 kms