FR 17 then BA 831 at Dublin
Newcastle → Dublin → London Heathrow
Timetable, Dublin time
22:30FR 17 from Newcastle at the gate
13:35BA 831 to London Heathrow leaves the gate
15 h 05 apart on the timetable, overnight
BA 831 leaves 15 h 05 after FR 17 arrives on the timetable: more than half a day, so not a connection we count.