RO 301 then LH 1278 at Frankfurt
Bucharest → Frankfurt am Main → Athens
Timetable, Frankfurt am Main time
10:15RO 301 from Bucharest at the gate
08:50LH 1278 to Athens leaves the gate
22 h 35 apart on the timetable, overnight
LH 1278 leaves 22 h 35 after RO 301 arrives on the timetable: more than half a day, so not a connection we count.