There are
1,614 mi
from Harlingen, TX to Palmdale, CA
That's the driving distance. It would take 1 day 4 hours to go from Harlingen, Texas to Palmdale, California.
The flight distance (direct flight from Harlingen, TX to Palmdale, CA) is 1,344.55 mi.
1,614 mi = 2,596.72 kms