There are
1,857 mi
from Waterloo, IA to Tigard, OR
That's the driving distance. It would take 1 day 8 hours to go from Waterloo, Iowa to Tigard, Oregon.
The flight distance (direct flight from Waterloo, IA to Tigard, OR) is 1,517.62 mi.
1,857 mi = 2,988.14 kms