I2 1698 then IB 719 at Madrid
Ibiza → Madrid → London Heathrow
Timetable, Madrid time
15:50I2 1698 from Ibiza at the gatealso IB 1698
14:55IB 719 to London Heathrow leaves the gatealso VY 5226, QR 5346, LA 5409, DT 6162, BA 7054, AA 8653
23 h 05 apart on the timetable, overnight
IB 719 leaves 23 h 05 after I2 1698 arrives on the timetable: more than half a day, so not a connection we count.