The Broncos (6-4) also scored on runs of 7 and 2 yards by Peyton Hillis and a 20-yard Matt Prater field goal.
Cutler completed 19-of-27 passes for 216 yards. Brandon Marshall was the leading Denver receiver with six catches fort 89 yards.
Michael Turner ran for touchdowns of 9 and 28 yards for the Falcons (6-4).
Atlanta's Matt Ryan was 20-of-33 passing for 250 yards, with an interception, and Jason Elam booted field goals of 46 and 36 yards.