There are
3,134 mi
from San Mateo, CA to Quincy, MA
That's the driving distance. It would take 2 days 7 hours to go from San Mateo, California to Quincy, Massachusetts.
The flight distance (direct flight from San Mateo, CA to Quincy, MA) is 2,698.20 mi.
3,134 mi = 5,043.54 kms