IB 306 then FR 572 at Madrid
Monterrey → Madrid → Porto
Timetable, Madrid time
13:50IB 306 from Monterrey at the gatealso BA 7180
09:20FR 572 to Porto leaves the gate
19 h 30 apart on the timetable, overnight
FR 572 leaves 19 h 30 after IB 306 arrives on the timetable: more than half a day, so not a connection we count.