AA 3709 then AA 3787 at DFW
Tampico → Dallas-Fort Worth → Mc Allen
Timetable, Dallas-Fort Worth time
18:06AA 3709 from Tampico at the gate
17:49AA 3787 to Mc Allen leaves the gate
23 h 43 apart on the timetable, overnight
AA 3787 leaves 23 h 43 after AA 3709 arrives on the timetable: more than half a day, so not a connection we count.