BA 778 then DY 4051 at Arlanda
London Heathrow → Stockholm → Skelleftea
Timetable, Stockholm time
14:30BA 778 from London Heathrow at the gate
12:20DY 4051 to Skelleftea leaves the gate
21 h 50 apart on the timetable, overnight
DY 4051 leaves 21 h 50 after BA 778 arrives on the timetable: more than half a day, so not a connection we count.