BA 2954 then AV 2354 at San Francisco
Las Vegas → San Francisco → Denver
Timetable, San Francisco time
12:16BA 2954 from Las Vegas at the gate
05:00AV 2354 to Denver leaves the gate
16 h 44 apart on the timetable, overnight
AV 2354 leaves 16 h 44 after BA 2954 arrives on the timetable: more than half a day, so not a connection we count.