IB 5129 then QR 138 at Barcelona
Alicante → Barcelona → Doha
Timetable, Barcelona time
08:50IB 5129 from Alicante at the gate
08:35QR 138 to Doha leaves the gate
23 h 45 apart on the timetable, overnight
QR 138 leaves 23 h 45 after IB 5129 arrives on the timetable: more than half a day, so not a connection we count.