AA 642 then MQ 4200 at O'Hare
Dallas-Fort Worth → Chicago → White Plains
Timetable, Chicago time
13:10AA 642 from Dallas-Fort Worth at the gate
12:39MQ 4200 to White Plains leaves the gate
23 h 29 apart on the timetable, overnight
MQ 4200 leaves 23 h 29 after AA 642 arrives on the timetable: more than half a day, so not a connection we count.