AA 1107 then UA 1401 at DFW
Houston → Dallas-Fort Worth → Chicago O'Hare
Timetable, Dallas-Fort Worth time
16:09AA 1107 from Houston at the gate
12:31UA 1401 to Chicago O'Hare leaves the gate
20 h 22 apart on the timetable, overnight
UA 1401 leaves 20 h 22 after AA 1107 arrives on the timetable: more than half a day, so not a connection we count.