Miles between Decatur, IL and Quincy, MA

There are
1,112 mi
from Decatur, IL to Quincy, MA

That's the driving distance. It would take 21 hours 17 mins to go from Decatur, Illinois to Quincy, Massachusetts.

The flight distance (direct flight from Decatur, IL to Quincy, MA) is 948.36 mi.

1,112 mi = 1.61 kms