There are
937 mi
from Sunnyvale, CA to Ferndale, WA
That's the driving distance. It would take 18 hours 9 mins to go from Sunnyvale, California to Ferndale, Washington.
The flight distance (direct flight from Sunnyvale, CA to Ferndale, WA) is 793.52 mi.
937 mi = 1,508.69 kms