B6 33 then U2 3814 at Charles de Gaulle
Boston → Paris → Milan
Timetable, Paris time
09:20B6 33 from Boston at the gate
08:35U2 3814 to Milan leaves the gate
23 h 15 apart on the timetable, overnight
U2 3814 leaves 23 h 15 after B6 33 arrives on the timetable: more than half a day, so not a connection we count.