FB 437 then LH 3416 at Frankfurt
Sofia → Frankfurt am Main → ZMU
Timetable, Frankfurt am Main time
12:55FB 437 from Sofia at the gate
12:51LH 3416 to ZMU leaves the gate
23 h 56 apart on the timetable, overnight
LH 3416 leaves 23 h 56 after FB 437 arrives on the timetable: more than half a day, so not a connection we count.