Y4 7913 then AA 1408 at DFW
San Luis Potosi → Dallas-Fort Worth → Huatulco
Timetable, Dallas-Fort Worth time
15:31Y4 7913 from San Luis Potosi at the gate
10:23AA 1408 to Huatulco leaves the gate
18 h 52 apart on the timetable, overnight
AA 1408 leaves 18 h 52 after Y4 7913 arrives on the timetable: more than half a day, so not a connection we count.