There are
1,178 mi
from Chino Hills, CA to Sammamish, WA
That's the driving distance. It would take 22 hours 23 mins to go from Chino Hills, California to Sammamish, Washington.
The flight distance (direct flight from Chino Hills, CA to Sammamish, WA) is 969.85 mi.
1,178 mi = 1.61 kms