There are
1,921 mi
from Dekalb, IL to Redlands, CA
That's the driving distance. It would take 1 day 9 hours to go from Dekalb, Illinois to Redlands, California.
The flight distance (direct flight from Dekalb, IL to Redlands, CA) is 1,631.98 mi.
1,921 mi = 3,090.79 kms