BT 633 then FR 5816 at Fiumicino
Riga → Rome → Bari
Timetable, Rome time
13:30BT 633 from Riga at the gate
08:15FR 5816 to Bari leaves the gate
18 h 45 apart on the timetable, overnight
FR 5816 leaves 18 h 45 after BT 633 arrives on the timetable: more than half a day, so not a connection we count.