There are
1,892 mi
from Kennewick, WA to Deerfield, IL
That's the driving distance. It would take 1 day 8 hours to go from Kennewick, Washington to Deerfield, Illinois.
The flight distance (direct flight from Kennewick, WA to Deerfield, IL) is 1,564.64 mi.
1,892 mi = 3,044.44 kms