There are
1,246 mi
from Harlingen, TX to Avondale, AZ
That's the driving distance. It would take 21 hours 25 mins to go from Harlingen, Texas to Avondale, Arizona.
The flight distance (direct flight from Harlingen, TX to Avondale, AZ) is 1,009.57 mi.
1,246 mi = 2,004.50 kms