AA 3556 then AA 6238 at DFW
Mazatlan → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
17:08AA 3556 from Mazatlan at the gate
08:25AA 6238 to Amarillo leaves the gate
15 h 17 apart on the timetable, overnight
AA 6238 leaves 15 h 17 after AA 3556 arrives on the timetable: more than half a day, so not a connection we count.