AA 192 then QR 3655 at Barcelona
Dallas-Fort Worth → Barcelona → Nice
Timetable, Barcelona time
08:50AA 192 from Dallas-Fort Worth at the gatealso BA 1648, AY 3842, IB 4792
21:20QR 3655 to Nice leaves the gate
12 h 30 apart on the timetable
QR 3655 leaves 12 h 30 after AA 192 arrives on the timetable: more than half a day, so not a connection we count.