AA 3709 then AA 3875 at DFW
Tampico → Dallas-Fort Worth → Brownsville
Timetable, Dallas-Fort Worth time
18:06AA 3709 from Tampico at the gate
17:53AA 3875 to Brownsville leaves the gate
23 h 47 apart on the timetable, overnight
AA 3875 leaves 23 h 47 after AA 3709 arrives on the timetable: more than half a day, so not a connection we count.