SK 4451 then BA 813 at Copenhagen
Tromso → Copenhagen → London Heathrow
Timetable, Copenhagen time
15:25SK 4451 from Tromso at the gate
15:05BA 813 to London Heathrow leaves the gate
23 h 40 apart on the timetable, overnight
BA 813 leaves 23 h 40 after SK 4451 arrives on the timetable: more than half a day, so not a connection we count.