LA 5745 then IB 2629 at Barcelona
Rome → Barcelona → Miami
Timetable, Barcelona time
01:25LA 5745 from Rome at the gate
15:05IB 2629 to Miami leaves the gatealso LL 2629, AY 5399, QR 8000, AA 8791
13 h 40 apart on the timetable
IB 2629 leaves 13 h 40 after LA 5745 arrives on the timetable: more than half a day, so not a connection we count.