There are
3,110 mi
from Somerville, MA to San Leandro, CA
That's the driving distance. It would take 2 days 7 hours to go from Somerville, Massachusetts to San Leandro, California.
The flight distance (direct flight from Somerville, MA to San Leandro, CA) is 2,678.59 mi.
3,110 mi = 4.83 kms