UA 471 then DL 996 at Atlanta
Washington → Atlanta → Los Angeles
Timetable, Atlanta time
14:36UA 471 from Washington at the gate
07:00DL 996 to Los Angeles leaves the gate
16 h 24 apart on the timetable, overnight
DL 996 leaves 16 h 24 after UA 471 arrives on the timetable: more than half a day, so not a connection we count.