DY 999 then SK 809 at Oslo
Billund → Oslo → London Heathrow
Timetable, Oslo time
16:35DY 999 from Billund at the gate
14:55SK 809 to London Heathrow leaves the gate
22 h 20 apart on the timetable, overnight
SK 809 leaves 22 h 20 after DY 999 arrives on the timetable: more than half a day, so not a connection we count.