There are
3,179 mi
from Walnut Creek, CA to Saco, ME
That's the driving distance. It would take 2 days 8 hours to go from Walnut Creek, California to Saco, Maine.
The flight distance (direct flight from Walnut Creek, CA to Saco, ME) is 2,687.77 mi.
3,179 mi = 5,115.66 kms