FR 1061 then SK 1501 at Copenhagen
Madrid → Copenhagen → London Heathrow
Timetable, Copenhagen time
19:55FR 1061 from Madrid at the gate
17:30SK 1501 to London Heathrow leaves the gate
21 h 35 apart on the timetable, overnight
SK 1501 leaves 21 h 35 after FR 1061 arrives on the timetable: more than half a day, so not a connection we count.