There are
1,405 mi
from Palatine, IL to Harlingen, TX
That's the driving distance. It would take 1 day 2 hours to go from Palatine, Illinois to Harlingen, Texas.
The flight distance (direct flight from Palatine, IL to Harlingen, TX) is 1,228.89 mi.
1,405 mi = 2,261.22 kms