EC 7681 then A3 711 at Barcelona
Lisbon → Barcelona → Athens
Timetable, Barcelona time
21:50EC 7681 from Lisbon at the gatealso U2 7681
11:20A3 711 to Athens leaves the gate
13 h 30 apart on the timetable, overnight
A3 711 leaves 13 h 30 after EC 7681 arrives on the timetable: more than half a day, so not a connection we count.