AF 1780 then BA 892 at Heathrow
Paris Charles de Gaulle → London → Sofia
Timetable, London time
13:45AF 1780 from Paris Charles de Gaulle at the gate
11:10BA 892 to Sofia leaves the gate
21 h 25 apart on the timetable, overnight
BA 892 leaves 21 h 25 after AF 1780 arrives on the timetable: more than half a day, so not a connection we count.