AA 3986 then AA 1408 at DFW
Greenville-Spartanburg → Dallas-Fort Worth → Huatulco
Timetable, Dallas-Fort Worth time
15:59AA 3986 from Greenville-Spartanburg at the gate
10:49AA 1408 to Huatulco leaves the gate
18 h 50 apart on the timetable, overnight
AA 1408 leaves 18 h 50 after AA 3986 arrives on the timetable: more than half a day, so not a connection we count.