FR 7798 then BA 835 at Dublin
Lanzarote → Dublin → London Heathrow
Timetable, Dublin time
00:45FR 7798 from Lanzarote at the gate
18:00BA 835 to London Heathrow leaves the gate
17 h 15 apart on the timetable
BA 835 leaves 17 h 15 after FR 7798 arrives on the timetable: more than half a day, so not a connection we count.