There are
1,840 mi
from Harlingen, TX to Madera, CA
That's the driving distance. It would take 1 day 8 hours to go from Harlingen, Texas to Madera, California.
The flight distance (direct flight from Harlingen, TX to Madera, CA) is 1,506.62 mi.
1,840 mi = 2,961.41 kms