Having played at the San Siro before, for fierce rivals Inter, the Italian would be happy to return with Milan as he has supported them since childhood.
However, the 22-year-old has declared that with his fiancee expecting their first baby, he is happy to be living in the North East and playing for the Magpies.
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"A return to Italy? At Newcastle I'm a king and I have a contract until 2016.
"But I've heard of the interest from Milan in me and that is really pleasing because I have been a Milan fan since I was a child.
"I'm not sure what would happen if another Italian club came in for me, but I'd seriously think about packing my bags for Milan."
Santon also admits reuniting with former team-mate Mario Balotelli would be an extra incentive to join the Rossoneri.
He added: "Balotelli? We were still friends and I'm glad he's doing well at Milan.
"His presence would be an incentive to accept AC Milan."