FR 555 then BA 829 at Dublin
Manchester → Dublin → London Heathrow
Timetable, Dublin time
21:45FR 555 from Manchester at the gate
11:00BA 829 to London Heathrow leaves the gate
13 h 15 apart on the timetable, overnight
BA 829 leaves 13 h 15 after FR 555 arrives on the timetable: more than half a day, so not a connection we count.