FR 6814 then IB 725 at Madrid
Manchester → Madrid → London Heathrow
Timetable, Madrid time
23:55FR 6814 from Manchester at the gate
17:20IB 725 to London Heathrow leaves the gatealso LA 1704, VY 5180, BA 7058
17 h 25 apart on the timetable, overnight
IB 725 leaves 17 h 25 after FR 6814 arrives on the timetable: more than half a day, so not a connection we count.