There are
2,373 mi
from Kennewick, WA to Westwego, LA
That's the driving distance. It would take 1 day 18 hours to go from Kennewick, Washington to Westwego, Louisiana.
The flight distance (direct flight from Kennewick, WA to Westwego, LA) is 1,920.66 mi.
2,373 mi = 3,818.43 kms