There are
2,156 mi
from Medford, OR to Dekalb, IL
That's the driving distance. It would take 1 day 13 hours to go from Medford, Oregon to Dekalb, Illinois.
The flight distance (direct flight from Medford, OR to Dekalb, IL) is 1,737.06 mi.
2,156 mi = 3,470.27 kms