There are
1,274 mi
from Sioux City, IA to Weslaco, TX
That's the driving distance. It would take 22 hours 21 mins to go from Sioux City, Iowa to Weslaco, Texas.
The flight distance (direct flight from Sioux City, IA to Weslaco, TX) is 1,132.60 mi.
1,274 mi = 1.61 kms