AA 3818 then UA 1401 at DFW
El Paso → Dallas-Fort Worth → Chicago O'Hare
Timetable, Dallas-Fort Worth time
15:45AA 3818 from El Paso at the gate
12:31UA 1401 to Chicago O'Hare leaves the gate
20 h 46 apart on the timetable, overnight
UA 1401 leaves 20 h 46 after AA 3818 arrives on the timetable: more than half a day, so not a connection we count.