AA 3818 then AA 2359 at DFW
El Paso → Dallas-Fort Worth → Denver
Timetable, Dallas-Fort Worth time
15:45AA 3818 from El Paso at the gate
11:02AA 2359 to Denver leaves the gate
19 h 17 apart on the timetable, overnight
AA 2359 leaves 19 h 17 after AA 3818 arrives on the timetable: more than half a day, so not a connection we count.