There are
3,004 mi
from Walnut Creek, CA to Northampton, MA
That's the driving distance. It would take 2 days 5 hours to go from Walnut Creek, California to Northampton, Massachusetts.
The flight distance (direct flight from Walnut Creek, CA to Northampton, MA) is 2,592.50 mi.
3,004 mi = 4,834.59 kms