AA 3818 then UA 1586 at DFW
El Paso → Dallas-Fort Worth → Houston
Timetable, Dallas-Fort Worth time
15:45AA 3818 from El Paso at the gate
09:42UA 1586 to Houston leaves the gate
17 h 57 apart on the timetable, overnight
UA 1586 leaves 17 h 57 after AA 3818 arrives on the timetable: more than half a day, so not a connection we count.