There are
1,561 mi
from Sioux Falls, SD to Laconia, NH
That's the driving distance. It would take 1 day 6 hours to go from Sioux Falls, South Dakota to Laconia, New Hampshire.
The flight distance (direct flight from Sioux Falls, SD to Laconia, NH) is 1,258.78 mi.
1,561 mi = 1.61 kms