There are
702 mi
from Garland, TX to Altoona, IA
That's the driving distance. It would take 13 hours 5 mins to go from Garland, Texas to Altoona, Iowa.
The flight distance (direct flight from Garland, TX to Altoona, IA) is 628.16 mi.
702 mi = 1,129.98 kms