DE 1669 then LH 840 at Frankfurt
Heraklion → Frankfurt am Main → Billund
Timetable, Frankfurt am Main time
17:50DE 1669 from Heraklion at the gate
17:00LH 840 to Billund leaves the gate
23 h 10 apart on the timetable, overnight
LH 840 leaves 23 h 10 after DE 1669 arrives on the timetable: more than half a day, so not a connection we count.