There are
3,092 mi
from Quincy, MA to Clearlake, CA
That's the driving distance. It would take 2 days 7 hours to go from Quincy, Massachusetts to Clearlake, California.
The flight distance (direct flight from Quincy, MA to Clearlake, CA) is 2,675.98 mi.
3,092 mi = 4.83 kms