UA 5588 then AA 1121 at LAX
Fresno → Los Angeles → Charlotte
Timetable, Los Angeles time
09:26UA 5588 from Fresno at the gate
08:00AA 1121 to Charlotte leaves the gate
22 h 34 apart on the timetable, overnight
AA 1121 leaves 22 h 34 after UA 5588 arrives on the timetable: more than half a day, so not a connection we count.