BA 673 then AF 1181 at Heathrow
Thessaloniki → London → Paris Charles de Gaulle
Timetable, London time
21:45BA 673 from Thessaloniki at the gate
19:20AF 1181 to Paris Charles de Gaulle leaves the gate
21 h 35 apart on the timetable, overnight
AF 1181 leaves 21 h 35 after BA 673 arrives on the timetable: more than half a day, so not a connection we count.