BA 476 then LY 9001 at Barcelona
London Heathrow → Barcelona → Lisbon
Timetable, Barcelona time
11:35BA 476 from London Heathrow at the gate
10:55LY 9001 to Lisbon leaves the gate
23 h 20 apart on the timetable, overnight
LY 9001 leaves 23 h 20 after BA 476 arrives on the timetable: more than half a day, so not a connection we count.