There are
1,229 mi
from Waterloo, IA to Robstown, TX
That's the driving distance. It would take 22 hours 5 mins to go from Waterloo, Iowa to Robstown, Texas.
The flight distance (direct flight from Waterloo, IA to Robstown, TX) is 1,058.88 mi.
1,229 mi = 1,977.72 kms