QR 8833 then UA 2421 at San Francisco
Los Angeles → San Francisco → Vancouver
Timetable, San Francisco time
18:10QR 8833 from Los Angeles at the gate
10:15UA 2421 to Vancouver leaves the gate
16 h 05 apart on the timetable, overnight
UA 2421 leaves 16 h 05 after QR 8833 arrives on the timetable: more than half a day, so not a connection we count.