FR 4584 then AH 2019 at Barcelona
Porto → Barcelona → Oran
Timetable, Barcelona time
18:35FR 4584 from Porto at the gate
12:50AH 2019 to Oran leaves the gate
18 h 15 apart on the timetable, overnight
AH 2019 leaves 18 h 15 after FR 4584 arrives on the timetable: more than half a day, so not a connection we count.