AA 3709 then AA 2235 at DFW
Tampico → Dallas-Fort Worth → Denver
Timetable, Dallas-Fort Worth time
18:06AA 3709 from Tampico at the gate
17:50AA 2235 to Denver leaves the gate
23 h 44 apart on the timetable, overnight
AA 2235 leaves 23 h 44 after AA 3709 arrives on the timetable: more than half a day, so not a connection we count.