DL 763 then UA 2198 at LAX
Atlanta → Los Angeles → Houston
Timetable, Los Angeles time
19:55DL 763 from Atlanta at the gate
15:18UA 2198 to Houston leaves the gate
19 h 23 apart on the timetable, overnight
UA 2198 leaves 19 h 23 after DL 763 arrives on the timetable: more than half a day, so not a connection we count.