FR 509 then BA 835 at Dublin
Bristol → Dublin → London Heathrow
Timetable, Dublin time
20:10FR 509 from Bristol at the gate
18:35BA 835 to London Heathrow leaves the gate
22 h 25 apart on the timetable, overnight
BA 835 leaves 22 h 25 after FR 509 arrives on the timetable: more than half a day, so not a connection we count.