FB 437 then 4Y 618 at Frankfurt
Sofia → Frankfurt am Main → Lyon
Timetable, Frankfurt am Main time
13:15FB 437 from Sofia at the gate
12:454Y 618 to Lyon leaves the gate
23 h 30 apart on the timetable, overnight
4Y 618 leaves 23 h 30 after FB 437 arrives on the timetable: more than half a day, so not a connection we count.