FR 661 then BA 825 at Dublin
Birmingham (UK) → Dublin → London Heathrow
Timetable, Dublin time
14:10FR 661 from Birmingham (UK) at the gate
08:50BA 825 to London Heathrow leaves the gate
18 h 40 apart on the timetable, overnight
BA 825 leaves 18 h 40 after FR 661 arrives on the timetable: more than half a day, so not a connection we count.