There are
2,797 mi
from Hartford, CT to Kennewick, WA
That's the driving distance. It would take 2 days 1 hour to go from Hartford, Connecticut to Kennewick, Washington.
The flight distance (direct flight from Hartford, CT to Kennewick, WA) is 2,296.22 mi.
2,797 mi = 4,501.26 kms