There are
970 mi
from Glendale, CA to Gresham, OR
That's the driving distance. It would take 18 hours 21 mins to go from Glendale, California to Gresham, Oregon.
The flight distance (direct flight from Glendale, CA to Gresham, OR) is 815.10 mi.
970 mi = 1,560.45 kms