UA 2131 then DL 996 at Atlanta
San Francisco → Atlanta → Los Angeles
Timetable, Atlanta time
16:27UA 2131 from San Francisco at the gate
07:00DL 996 to Los Angeles leaves the gate
14 h 33 apart on the timetable, overnight
DL 996 leaves 14 h 33 after UA 2131 arrives on the timetable: more than half a day, so not a connection we count.