FR 10 then BA 465 at Madrid
Dublin → Madrid → London Heathrow
Timetable, Madrid time
21:15FR 10 from Dublin at the gate
18:10BA 465 to London Heathrow leaves the gate
20 h 55 apart on the timetable, overnight
BA 465 leaves 20 h 55 after FR 10 arrives on the timetable: more than half a day, so not a connection we count.