AA 642 then UA 5122 at O'Hare
Dallas-Fort Worth → Chicago → Eau Claire
Timetable, Chicago time
13:10AA 642 from Dallas-Fort Worth at the gate
11:59UA 5122 to Eau Claire leaves the gate
22 h 49 apart on the timetable, overnight
UA 5122 leaves 22 h 49 after AA 642 arrives on the timetable: more than half a day, so not a connection we count.