There are
1,443 mi
from Glendale, AZ to Johnston, IA
That's the driving distance. It would take 1 day 1 hour to go from Glendale, Arizona to Johnston, Iowa.
The flight distance (direct flight from Glendale, AZ to Johnston, IA) is 1,153.66 mi.
1,443 mi = 1.61 kms