AA 3810 then DL 873 at DFW
Monterrey → Dallas-Fort Worth → New York LaGuardia
Timetable, Dallas-Fort Worth time
09:55AA 3810 from Monterrey at the gate
09:00DL 873 to New York LaGuardia leaves the gate
23 h 05 apart on the timetable, overnight
DL 873 leaves 23 h 05 after AA 3810 arrives on the timetable: more than half a day, so not a connection we count.