The Falcons built a 21-10 lead in the game's first two quarters behind a strong drive by their offense, a key forced fumble by their defense and a fortuitous interception return by linebacker Sean Weatherspoon.
Behind Flynn, the Packers outscored the Falcons 12-0 in the second half of the game thanks to some timely plays of his own and a critical mishap by Falcons tackle Ryan Schraeder deep in Atlanta territory.
With the win, Green Bay notched its first victory in five games since losing star quarterback Aaron Rodgers to a collarbone injury.
Let's break down how the Falcons lost their 10th game of the season as we dish out our Week 14 full roster report card grades for Atlanta.
All game stats are via ESPN.COM