TK 1587 then LH 1278 at Frankfurt
Istanbul → Frankfurt am Main → Athens
Timetable, Frankfurt am Main time
09:30TK 1587 from Istanbul at the gate
08:50LH 1278 to Athens leaves the gate
23 h 20 apart on the timetable, overnight
LH 1278 leaves 23 h 20 after TK 1587 arrives on the timetable: more than half a day, so not a connection we count.