EI 172 then BA 374 at Heathrow
Dublin → London → Toulouse
Timetable, London time
16:50EI 172 from Dublin at the gate
16:10BA 374 to Toulouse leaves the gate
23 h 20 apart on the timetable, overnight
BA 374 leaves 23 h 20 after EI 172 arrives on the timetable: more than half a day, so not a connection we count.