UA 643 then QR 8874 at San Francisco
Las Vegas → San Francisco → Portland (Oregon)
Timetable, San Francisco time
07:44UA 643 from Las Vegas at the gatealso AC 5211, NH 7315, VA 8122, NZ 9237
07:42QR 8874 to Portland (Oregon) leaves the gate
23 h 58 apart on the timetable, overnight
QR 8874 leaves 23 h 58 after UA 643 arrives on the timetable: more than half a day, so not a connection we count.