UA 1590 then DL 948 at DFW
Newark → Dallas-Fort Worth → Los Angeles
Timetable, Dallas-Fort Worth time
18:32UA 1590 from Newark at the gate
16:10DL 948 to Los Angeles leaves the gate
21 h 38 apart on the timetable, overnight
DL 948 leaves 21 h 38 after UA 1590 arrives on the timetable: more than half a day, so not a connection we count.