There are
638 mi
from Yakima, WA to Clearlake, CA
That's the driving distance. It would take 13 hours 2 mins to go from Yakima, Washington to Clearlake, California.
The flight distance (direct flight from Yakima, WA to Clearlake, CA) is 538.92 mi.
638 mi = 1,026.08 kms