AA 2896 then UA 1564 at DFW
Chicago O'Hare → Dallas-Fort Worth → Chicago O'Hare
Timetable, Dallas-Fort Worth time
00:43AA 2896 from Chicago O'Hare at the gate
16:15UA 1564 to Chicago O'Hare leaves the gate
15 h 32 apart on the timetable
UA 1564 leaves 15 h 32 after AA 2896 arrives on the timetable: more than half a day, so not a connection we count.