There are
1,718 mi
from Surprise, AZ to Dekalb, IL
That's the driving distance. It would take 1 day 6 hours to go from Surprise, Arizona to Dekalb, Illinois.
The flight distance (direct flight from Surprise, AZ to Dekalb, IL) is 1,406.47 mi.
1,718 mi = 1.61 kms