There are
3,123 mi
from San Mateo, CA to Laconia, NH
That's the driving distance. It would take 2 days 8 hours to go from San Mateo, California to Laconia, New Hampshire.
The flight distance (direct flight from San Mateo, CA to Laconia, NH) is 2,659.69 mi.
3,123 mi = 4.83 kms