There are
2,739 mi
from Danbury, CT to Kennewick, WA
That's the driving distance. It would take 2 days to go from Danbury, Connecticut to Kennewick, Washington.
The flight distance (direct flight from Danbury, CT to Kennewick, WA) is 2,270.25 mi.
2,739 mi = 3.22 kms