There are
3,076 mi
from San Clemente, CA to Somersworth, NH
That's the driving distance. It would take 2 days 7 hours to go from San Clemente, California to Somersworth, New Hampshire.
The flight distance (direct flight from San Clemente, CA to Somersworth, NH) is 2,586.84 mi.
3,076 mi = 4,951.07 kms