JL 7554 then OZ 9521 at San Francisco
Los Angeles → San Francisco → Houston
Timetable, San Francisco time
20:27JL 7554 from Los Angeles at the gate
16:40OZ 9521 to Houston leaves the gate
20 h 13 apart on the timetable, overnight
OZ 9521 leaves 20 h 13 after JL 7554 arrives on the timetable: more than half a day, so not a connection we count.