On 18 September 2011, Flynn helped Dublin claim their first All-Ireland title in sixteen years, as they beat Kerry at Croke Park. He was awarded his first All Star Award for his performances for Dublin in the half forwards in 2011.
In a significant victory on 18 September 2011, Flynn played a crucial role in Dublin's first All-Ireland title in sixteen years, as they defeated Kerry at Croke Park. His impressive displays with Dublin in the half-forwards earned him his first All Star Award in 2011.