There are
1,279 mi
from Champaign, IL to Harlingen, TX
That's the driving distance. It would take 23 hours 18 mins to go from Champaign, Illinois to Harlingen, Texas.
The flight distance (direct flight from Champaign, IL to Harlingen, TX) is 1,105.08 mi.
1,279 mi = 1.61 kms