SK 1841 then BT 634 at Fiumicino
Stockholm → Rome → Riga
Timetable, Rome time
19:55SK 1841 from Stockholm at the gate
14:15BT 634 to Riga leaves the gate
18 h 20 apart on the timetable, overnight
BT 634 leaves 18 h 20 after SK 1841 arrives on the timetable: more than half a day, so not a connection we count.