There are
3,091 mi
from San Diego, CA to Somersworth, NH
That's the driving distance. It would take 2 days 8 hours to go from San Diego, California to Somersworth, New Hampshire.
The flight distance (direct flight from San Diego, CA to Somersworth, NH) is 2,588.28 mi.
3,091 mi = 4.83 kms