There are
1,134 mi
from Simi Valley, CA to Issaquah, WA
That's the driving distance. It would take 21 hours 38 mins to go from Simi Valley, California to Issaquah, Washington.
The flight distance (direct flight from Simi Valley, CA to Issaquah, WA) is 931.61 mi.
1,134 mi = 1.61 kms