There are
1,265 mi
from Sioux City, IA to Mcallen, TX
That's the driving distance. It would take 22 hours 12 mins to go from Sioux City, Iowa to Mcallen, Texas.
The flight distance (direct flight from Sioux City, IA to Mcallen, TX) is 1,130.73 mi.
1,265 mi = 1.61 kms