There are
1,079 mi
from Pasco, WA to Walnut, CA
That's the driving distance. It would take 20 hours 26 mins to go from Pasco, Washington to Walnut, California.
The flight distance (direct flight from Pasco, WA to Walnut, CA) is 846.76 mi.
1,079 mi = 1,736.14 kms