SK 527 then BA 374 at Heathrow
Stockholm → London → Toulouse
Timetable, London time
17:00SK 527 from Stockholm at the gate
16:10BA 374 to Toulouse leaves the gate
23 h 10 apart on the timetable, overnight
BA 374 leaves 23 h 10 after SK 527 arrives on the timetable: more than half a day, so not a connection we count.