There are
1,215 mi
from Laredo, TX to Marshalltown, IA
That's the driving distance. It would take 21 hours 23 mins to go from Laredo, Texas to Marshalltown, Iowa.
The flight distance (direct flight from Laredo, TX to Marshalltown, IA) is 1,071.47 mi.
1,215 mi = 1.61 kms