LH 249 then DE 1668 at Frankfurt
Milan → Frankfurt am Main → Heraklion
Timetable, Frankfurt am Main time
10:35LH 249 from Milan at the gate
09:40DE 1668 to Heraklion leaves the gate
23 h 05 apart on the timetable, overnight
DE 1668 leaves 23 h 05 after LH 249 arrives on the timetable: more than half a day, so not a connection we count.