Flamini angered Gunners fans with his decision to leave for the Rossoneri.
"My father is Italian," he told the Daily Mail. "So I am half Italian. To come to Italy, to one of the biggest clubs in the world, to be part of this, to train and play with these players, is a dream for me. I enjoyed my time at Arsenal and I still have great friends there. Cesc, Tomas, Robin. But my family were very proud when I came here.
"To play with Maldini, Ronaldinho, Dida, Seedorf, Ambrosini. Legends. For my career but also for my personal experience it is fantastic.
"It is a team in transition. There are younger players coming into a team with players who have won everything. But there is still the same ambition. At Milan you are expected to win titles and trophies - win every game."