There are
1,185 mi
from Wheaton, IL to Port Lavaca, TX
That's the driving distance. It would take 22 hours 28 mins to go from Wheaton, Illinois to Port Lavaca, Texas.
The flight distance (direct flight from Wheaton, IL to Port Lavaca, TX) is 1,032.78 mi.
1,185 mi = 1,906.70 kms