SK 1842 then DY 4459 at Arlanda
Rome → Stockholm → London Gatwick
Timetable, Stockholm time
23:55SK 1842 from Rome at the gate
17:55DY 4459 to London Gatwick leaves the gate
18 h apart on the timetable, overnight
DY 4459 leaves 18 h after SK 1842 arrives on the timetable: more than half a day, so not a connection we count.