There are
1,740 mi
from Wasco, CA to Harlingen, TX
That's the driving distance. It would take 1 day 6 hours to go from Wasco, California to Harlingen, Texas.
The flight distance (direct flight from Wasco, CA to Harlingen, TX) is 1,433.95 mi.
1,740 mi = 2,800.22 kms