AZ 4441 then WN 3846 at San Francisco
Washington → San Francisco → Las Vegas
Timetable, San Francisco time
21:29AZ 4441 from Washington at the gatealso SN 8889
21:00WN 3846 to Las Vegas leaves the gate
23 h 31 apart on the timetable, overnight
WN 3846 leaves 23 h 31 after AZ 4441 arrives on the timetable: more than half a day, so not a connection we count.