FR 665 then BA 829 at Dublin
Birmingham (UK) → Dublin → London Heathrow
Timetable, Dublin time
16:20FR 665 from Birmingham (UK) at the gate
11:00BA 829 to London Heathrow leaves the gate
18 h 40 apart on the timetable, overnight
BA 829 leaves 18 h 40 after FR 665 arrives on the timetable: more than half a day, so not a connection we count.