There are
993 mi
from Ottumwa, IA to Midland, TX
That's the driving distance. It would take 18 hours 5 mins to go from Ottumwa, Iowa to Midland, Texas.
The flight distance (direct flight from Ottumwa, IA to Midland, TX) is 821.50 mi.
993 mi = 1,598.20 kms