There are
1,971 mi
from Harlingen, TX to Orinda, CA
That's the driving distance. It would take 1 day 10 hours to go from Harlingen, Texas to Orinda, California.
The flight distance (direct flight from Harlingen, TX to Orinda, CA) is 1,638.33 mi.
1,971 mi = 3,171.82 kms