AA 3818 then AA 2712 at DFW
El Paso → Dallas-Fort Worth → St Louis
Timetable, Dallas-Fort Worth time
15:45AA 3818 from El Paso at the gate
12:18AA 2712 to St Louis leaves the gate
20 h 33 apart on the timetable, overnight
AA 2712 leaves 20 h 33 after AA 3818 arrives on the timetable: more than half a day, so not a connection we count.