There are
1,088 mi
from Kennewick, WA to San Jacinto, CA
That's the driving distance. It would take 20 hours 32 mins to go from Kennewick, Washington to San Jacinto, California.
The flight distance (direct flight from Kennewick, WA to San Jacinto, CA) is 866.25 mi.
1,088 mi = 1,751.19 kms