UA 1341 then JL 5452 at San Francisco
Detroit → San Francisco → Las Vegas
Timetable, San Francisco time
19:31UA 1341 from Detroit at the gatealso OZ 9538
19:19JL 5452 to Las Vegas leaves the gate
23 h 48 apart on the timetable, overnight
JL 5452 leaves 23 h 48 after UA 1341 arrives on the timetable: more than half a day, so not a connection we count.