AM 1682 then AA 1974 at DFW
Mexico City → Dallas-Fort Worth → Chicago O'Hare
Timetable, Dallas-Fort Worth time
12:02AM 1682 from Mexico City at the gate
06:12AA 1974 to Chicago O'Hare leaves the gate
18 h 10 apart on the timetable, overnight
AA 1974 leaves 18 h 10 after AM 1682 arrives on the timetable: more than half a day, so not a connection we count.