U2 2047 then IB 725 at Madrid
Manchester → Madrid → London Heathrow
Timetable, Madrid time
20:35U2 2047 from Manchester at the gate
17:20IB 725 to London Heathrow leaves the gatealso LA 1704, VY 5180, BA 7058
20 h 45 apart on the timetable, overnight
IB 725 leaves 20 h 45 after U2 2047 arrives on the timetable: more than half a day, so not a connection we count.