There are
1,607 mi
from Harlingen, TX to Glendale, CA
That's the driving distance. It would take 1 day 3 hours to go from Harlingen, Texas to Glendale, California.
The flight distance (direct flight from Harlingen, TX to Glendale, CA) is 1,342.05 mi.
1,607 mi = 2,585.79 kms