There are
1,085 mi
from Dekalb, IL to Dickinson, TX
That's the driving distance. It would take 19 hours 59 mins to go from Dekalb, Illinois to Dickinson, Texas.
The flight distance (direct flight from Dekalb, IL to Dickinson, TX) is 930.53 mi.
1,085 mi = 1,746.33 kms