There are
979 mi
from Pasadena, CA to Troutdale, OR
That's the driving distance. It would take 18 hours 27 mins to go from Pasadena, California to Troutdale, Oregon.
The flight distance (direct flight from Pasadena, CA to Troutdale, OR) is 818.29 mi.
979 mi = 1,575.79 kms