AA 110 then FR 6342 at Fiumicino
Chicago → Rome → Barcelona
Timetable, Rome time
08:55AA 110 from Chicago at the gate
21:35FR 6342 to Barcelona leaves the gate
12 h 40 apart on the timetable
FR 6342 leaves 12 h 40 after AA 110 arrives on the timetable: more than half a day, so not a connection we count.