There are
1,601 mi
from Huntington Beach, CA to Harlingen, TX
That's the driving distance. It would take 1 day 3 hours to go from Huntington Beach, California to Harlingen, Texas.
The flight distance (direct flight from Huntington Beach, CA to Harlingen, TX) is 1,317.72 mi.
1,601 mi = 1.61 kms