There are
937 mi
from Yakima, WA to Arroyo Grande, CA
That's the driving distance. It would take 18 hours 26 mins to go from Yakima, Washington to Arroyo Grande, California.
The flight distance (direct flight from Yakima, WA to Arroyo Grande, CA) is 793.45 mi.
937 mi = 1,507.53 kms