There are
1,915 mi
from Kennewick, WA to Edwardsville, IL
That's the driving distance. It would take 1 day 9 hours to go from Kennewick, Washington to Edwardsville, Illinois.
The flight distance (direct flight from Kennewick, WA to Edwardsville, IL) is 1,561.37 mi.
1,915 mi = 3,081.27 kms