AA 3818 then AA 2586 at DFW
El Paso → Dallas-Fort Worth → Tucson
Timetable, Dallas-Fort Worth time
15:45AA 3818 from El Paso at the gate
10:40AA 2586 to Tucson leaves the gate
18 h 55 apart on the timetable, overnight
AA 2586 leaves 18 h 55 after AA 3818 arrives on the timetable: more than half a day, so not a connection we count.