There are
2,983 mi
from Somerville, MA to San Jacinto, CA
That's the driving distance. It would take 2 days 5 hours to go from Somerville, Massachusetts to San Jacinto, California.
The flight distance (direct flight from Somerville, MA to San Jacinto, CA) is 2,531.69 mi.
2,983 mi = 3.22 kms