There are
1,068 mi
from Decatur, IL to Warwick, RI
That's the driving distance. It would take 20 hours 36 mins to go from Decatur, Illinois to Warwick, Rhode Island.
The flight distance (direct flight from Decatur, IL to Warwick, RI) is 925.04 mi.
1,068 mi = 1.61 kms