LH 3587 then DE 1668 at Frankfurt
QDU → Frankfurt am Main → Heraklion
Timetable, Frankfurt am Main time
12:13LH 3587 from QDU at the gate
09:40DE 1668 to Heraklion leaves the gate
21 h 27 apart on the timetable, overnight
DE 1668 leaves 21 h 27 after LH 3587 arrives on the timetable: more than half a day, so not a connection we count.