There are
1,463 mi
from Harlingen, TX to Boynton Beach, FL
That's the driving distance. It would take 1 day 3 hours to go from Harlingen, Texas to Boynton Beach, Florida.
The flight distance (direct flight from Harlingen, TX to Boynton Beach, FL) is 1,090.85 mi.
1,463 mi = 2,353.76 kms