UA 1267 then QR 2134 at San Francisco
Las Vegas → San Francisco → Boise
Timetable, San Francisco time
21:18UA 1267 from Las Vegas at the gatealso AC 3031, OZ 6339, VA 8124, NZ 9238
18:47QR 2134 to Boise leaves the gate
21 h 29 apart on the timetable, overnight
QR 2134 leaves 21 h 29 after UA 1267 arrives on the timetable: more than half a day, so not a connection we count.