There are
1,811 mi
from Mckinney, TX to Somersworth, NH
That's the driving distance. It would take 1 day 9 hours to go from Mckinney, Texas to Somersworth, New Hampshire.
The flight distance (direct flight from Mckinney, TX to Somersworth, NH) is 1,553.50 mi.
1,811 mi = 1.61 kms