There are
982 mi
from Baytown, TX to Ottumwa, IA
That's the driving distance. It would take 18 hours 27 mins to go from Baytown, Texas to Ottumwa, Iowa.
The flight distance (direct flight from Baytown, TX to Ottumwa, IA) is 792.62 mi.
982 mi = 1,581.11 kms