There are
1,403 mi
from Wheaton, IL to Weslaco, TX
That's the driving distance. It would take 1 day 2 hours to go from Wheaton, Illinois to Weslaco, Texas.
The flight distance (direct flight from Wheaton, IL to Weslaco, TX) is 1,221.93 mi.
1,403 mi = 2,257.36 kms