BA 510 then FR 7137 at Lisbon
London Heathrow → Lisbon → Dublin
Timetable, Lisbon time
17:55BA 510 from London Heathrow at the gate
15:30FR 7137 to Dublin leaves the gate
21 h 35 apart on the timetable, overnight
FR 7137 leaves 21 h 35 after BA 510 arrives on the timetable: more than half a day, so not a connection we count.