AA 3709 then AA 1076 at DFW
Tampico → Dallas-Fort Worth → Nashville
Timetable, Dallas-Fort Worth time
18:06AA 3709 from Tampico at the gate
18:05AA 1076 to Nashville leaves the gate
23 h 59 apart on the timetable, overnight
AA 1076 leaves 23 h 59 after AA 3709 arrives on the timetable: more than half a day, so not a connection we count.