There are
972 mi
from Garland, TX to Flagstaff, AZ
That's the driving distance. It would take 16 hours 58 mins to go from Garland, Texas to Flagstaff, Arizona.
The flight distance (direct flight from Garland, TX to Flagstaff, AZ) is 872.19 mi.
972 mi = 1,563.80 kms