AA 1762 then UA 540 at Denver
Phoenix Sky Harbor → Denver → San Diego
Timetable, Denver time
19:22AA 1762 from Phoenix Sky Harbor at the gate
19:05UA 540 to San Diego leaves the gate
23 h 43 apart on the timetable, overnight
UA 540 leaves 23 h 43 after AA 1762 arrives on the timetable: more than half a day, so not a connection we count.