There are
1,243 mi
from Glendale, AZ to Harlingen, TX
That's the driving distance. It would take 21 hours 4 mins to go from Glendale, Arizona to Harlingen, Texas.
The flight distance (direct flight from Glendale, AZ to Harlingen, TX) is 1,004.23 mi.
1,243 mi = 1.61 kms