There are
3,025 mi
from San Leandro, CA to Northampton, MA
That's the driving distance. It would take 2 days 5 hours to go from San Leandro, California to Northampton, Massachusetts.
The flight distance (direct flight from San Leandro, CA to Northampton, MA) is 2,601.95 mi.
3,025 mi = 4.83 kms