LH 3511 then 4Y 10 at Frankfurt
QDU → Frankfurt am Main → Cancún
Timetable, Frankfurt am Main time
10:39LH 3511 from QDU at the gate
10:104Y 10 to Cancún leaves the gate
23 h 31 apart on the timetable, overnight
4Y 10 leaves 23 h 31 after LH 3511 arrives on the timetable: more than half a day, so not a connection we count.