Originally Posted by
donlind
When I flew Aegean from MXP, it was fromterminal 2. Had to go by bus from T1 to T2. The bus was a short stroll directly out from the T1 baggage claim area, IIRC. You might want to check with Aegean before you depart.
Both American and Aegean currently operate out of T1. The OP will not need to worry about changing terminals. There are two wings (A and B) at T1.
To the OP: B/c of the interline issue, you will need to pick up your bags which means you'll have to go thru immigration and end up landside. In other words, your activity will be no different than any other arriving [not transiting] passenger to MXP. Once you get the bags, you'll have to go from the arrivals floor to the departures floor and drop the bags at an Aegean desk. They will direct you to your departure gate from there.