FB 807 then EC 3656 at Athens
Sofia → Athens → Milan
Timetable, Athens time
19:50FB 807 from Sofia at the gate
11:10EC 3656 to Milan leaves the gate
15 h 20 apart on the timetable, overnight
EC 3656 leaves 15 h 20 after FB 807 arrives on the timetable: more than half a day, so not a connection we count.