DY 275 then BA 773 at Oslo
Kjevik → Oslo → London Heathrow
Timetable, Oslo time
19:30DY 275 from Kjevik at the gate
16:55BA 773 to London Heathrow leaves the gate
21 h 25 apart on the timetable, overnight
BA 773 leaves 21 h 25 after DY 275 arrives on the timetable: more than half a day, so not a connection we count.