There are
1,020 mi
from Pendleton, OR to Rosemead, CA
That's the driving distance. It would take 19 hours 5 mins to go from Pendleton, Oregon to Rosemead, California.
The flight distance (direct flight from Pendleton, OR to Rosemead, CA) is 801.79 mi.
1,020 mi = 1,641.30 kms