UA 3905 then AA 3152 at Houston
Cancún → Houston → Dallas-Fort Worth
Timetable, Houston time
13:29UA 3905 from Cancún at the gate
06:50AA 3152 to Dallas-Fort Worth leaves the gate
17 h 21 apart on the timetable, overnight
AA 3152 leaves 17 h 21 after UA 3905 arrives on the timetable: more than half a day, so not a connection we count.