There are
1,796 mi
from Garland, TX to Concord, NH
That's the driving distance. It would take 1 day 9 hours to go from Garland, Texas to Concord, New Hampshire.
The flight distance (direct flight from Garland, TX to Concord, NH) is 1,531.34 mi.
1,796 mi = 2,890.17 kms