There are
1,002 mi
from Dekalb, IL to Waco, TX
That's the driving distance. It would take 18 hours 30 mins to go from Dekalb, Illinois to Waco, Texas.
The flight distance (direct flight from Dekalb, IL to Waco, TX) is 853.69 mi.
1,002 mi = 1,613.15 kms