There are
1,702 mi
from Pasco, WA to Ottumwa, IA
That's the driving distance. It would take 1 day 5 hours to go from Pasco, Washington to Ottumwa, Iowa.
The flight distance (direct flight from Pasco, WA to Ottumwa, IA) is 1,375.62 mi.
1,702 mi = 2,739.68 kms