There are
1,512 mi
from Harlingen, TX to Orem, UT
That's the driving distance. It would take 1 day 4 hours to go from Harlingen, Texas to Orem, Utah.
The flight distance (direct flight from Harlingen, TX to Orem, UT) is 1,263.23 mi.
1,512 mi = 2,433.48 kms