There are
1,787 mi
from Waterloo, IA to Shoreline, WA
That's the driving distance. It would take 1 day 7 hours to go from Waterloo, Iowa to Shoreline, Washington.
The flight distance (direct flight from Waterloo, IA to Shoreline, WA) is 1,496.74 mi.
1,787 mi = 2,875.36 kms