DL 763 then UA 5851 at LAX
Atlanta (ATL) → Los Angeles → Phoenix Sky Harbor
Timetable, Los Angeles time
19:55DL 763 from Atlanta (ATL) at the gate
10:20UA 5851 to Phoenix Sky Harbor leaves the gate
14 h 25 apart on the timetable, overnight
UA 5851 leaves 14 h 25 after DL 763 arrives on the timetable: more than half a day, so not a connection we count.