BA 1401 then BA 362 at Heathrow
Belfast City → London → Lyon
Timetable, London time
18:25BA 1401 from Belfast City at the gate
17:35BA 362 to Lyon leaves the gate
23 h 10 apart on the timetable, overnight
BA 362 leaves 23 h 10 after BA 1401 arrives on the timetable: more than half a day, so not a connection we count.