A3 707 then LH 1279 at Athens
Bilbao → Athens → Frankfurt am Main
Timetable, Athens time
15:40A3 707 from Bilbao at the gate
13:30LH 1279 to Frankfurt am Main leaves the gate
21 h 50 apart on the timetable, overnight
LH 1279 leaves 21 h 50 after A3 707 arrives on the timetable: more than half a day, so not a connection we count.