There are
3,112 mi
from San Clemente, CA to Waterville, ME
That's the driving distance. It would take 2 days 9 hours to go from San Clemente, California to Waterville, Maine.
The flight distance (direct flight from San Clemente, CA to Waterville, ME) is 2,647.53 mi.
3,112 mi = 5,008.33 kms