EC 7694 then TP 1531 at Lisbon
Barcelona → Lisbon → Sao Tome
Timetable, Lisbon time
16:35EC 7694 from Barcelona at the gate
10:50TP 1531 to Sao Tome leaves the gate
18 h 15 apart on the timetable, overnight
TP 1531 leaves 18 h 15 after EC 7694 arrives on the timetable: more than half a day, so not a connection we count.