AA 1964 then AA 1408 at DFW
Montréal → Dallas-Fort Worth → Huatulco
Timetable, Dallas-Fort Worth time
18:55AA 1964 from Montréal at the gate
10:23AA 1408 to Huatulco leaves the gate
15 h 28 apart on the timetable, overnight
AA 1408 leaves 15 h 28 after AA 1964 arrives on the timetable: more than half a day, so not a connection we count.