AA 3994 then AA 1408 at DFW
Lake Charles → Dallas-Fort Worth → Huatulco
Timetable, Dallas-Fort Worth time
19:40AA 3994 from Lake Charles at the gate
10:49AA 1408 to Huatulco leaves the gate
15 h 09 apart on the timetable, overnight
AA 1408 leaves 15 h 09 after AA 3994 arrives on the timetable: more than half a day, so not a connection we count.