There are
2,686 mi
from Newark, NJ to Kennewick, WA
That's the driving distance. It would take 1 day 23 hours to go from Newark, New Jersey to Kennewick, Washington.
The flight distance (direct flight from Newark, NJ to Kennewick, WA) is 2,255.12 mi.
2,686 mi = 4,322.96 kms