AA 3818 then AA 3820 at DFW
El Paso → Dallas-Fort Worth → Sioux Falls
Timetable, Dallas-Fort Worth time
15:45AA 3818 from El Paso at the gate
15:18AA 3820 to Sioux Falls leaves the gate
23 h 33 apart on the timetable, overnight
AA 3820 leaves 23 h 33 after AA 3818 arrives on the timetable: more than half a day, so not a connection we count.