FR 509 then BA 825 at Dublin
Bristol → Dublin → London Heathrow
Timetable, Dublin time
09:35FR 509 from Bristol at the gate
08:45BA 825 to London Heathrow leaves the gate
23 h 10 apart on the timetable, overnight
BA 825 leaves 23 h 10 after FR 509 arrives on the timetable: more than half a day, so not a connection we count.