There are
1,497 mi
from Spokane, WA to Waterloo, IA
That's the driving distance. It would take 1 day 1 hour to go from Spokane, Washington to Waterloo, Iowa.
The flight distance (direct flight from Spokane, WA to Waterloo, IA) is 1,268.48 mi.
1,497 mi = 1.61 kms