UA 5588 then AA 4923 at LAX
Fresno → Los Angeles → Houston
Timetable, Los Angeles time
09:26UA 5588 from Fresno at the gate
09:22AA 4923 to Houston leaves the gate
23 h 56 apart on the timetable, overnight
AA 4923 leaves 23 h 56 after UA 5588 arrives on the timetable: more than half a day, so not a connection we count.