FR 447 then BA 837 at Dublin
Liverpool → Dublin → London Heathrow
Timetable, Dublin time
00:40FR 447 from Liverpool at the gate
19:25BA 837 to London Heathrow leaves the gate
18 h 45 apart on the timetable
BA 837 leaves 18 h 45 after FR 447 arrives on the timetable: more than half a day, so not a connection we count.