There are
973 mi
from Whittier, CA to Lake Oswego, OR
That's the driving distance. It would take 18 hours 23 mins to go from Whittier, California to Lake Oswego, Oregon.
The flight distance (direct flight from Whittier, CA to Lake Oswego, OR) is 827.71 mi.
973 mi = 1,565.39 kms