A3 629 then FB 808 at Athens
Luxembourg → Athens → Sofia
Timetable, Athens time
21:55A3 629 from Luxembourg at the gate
20:40FB 808 to Sofia leaves the gate
22 h 45 apart on the timetable, overnight
FB 808 leaves 22 h 45 after A3 629 arrives on the timetable: more than half a day, so not a connection we count.