LL 5423 then FR 8631 at Barcelona
London Heathrow → Barcelona → Tangier
Timetable, Barcelona time
13:10LL 5423 from London Heathrow at the gate
10:55FR 8631 to Tangier leaves the gate
21 h 45 apart on the timetable, overnight
FR 8631 leaves 21 h 45 after LL 5423 arrives on the timetable: more than half a day, so not a connection we count.