There are
1,634 mi
from Santa Clarita, CA to Harlingen, TX
That's the driving distance. It would take 1 day 4 hours to go from Santa Clarita, California to Harlingen, Texas.
The flight distance (direct flight from Santa Clarita, CA to Harlingen, TX) is 1,363.16 mi.
1,634 mi = 1.61 kms