There are
1,646 mi
from Harlingen, TX to Farmington Hills, MI
That's the driving distance. It would take 1 day 6 hours to go from Harlingen, Texas to Farmington Hills, Michigan.
The flight distance (direct flight from Harlingen, TX to Farmington Hills, MI) is 1,385.22 mi.
1,646 mi = 2,648.89 kms