CV 78 then IB 344 at O'Hare
Dallas-Fort Worth → Chicago → Madrid
Timetable, Chicago time
20:02CV 78 from Dallas-Fort Worth at the gate
19:45IB 344 to Madrid leaves the gate
23 h 43 apart on the timetable, overnight
IB 344 leaves 23 h 43 after CV 78 arrives on the timetable: more than half a day, so not a connection we count.