SK 1745 then SK 527 at Arlanda
Tallinn → Stockholm → London Heathrow
Timetable, Stockholm time
15:55SK 1745 from Tallinn at the gate
14:40SK 527 to London Heathrow leaves the gate
22 h 45 apart on the timetable, overnight
SK 527 leaves 22 h 45 after SK 1745 arrives on the timetable: more than half a day, so not a connection we count.