BA 2951 then AV 2354 at San Francisco
Portland (Oregon) → San Francisco → Denver
Timetable, San Francisco time
13:46BA 2951 from Portland (Oregon) at the gatealso AA 7511
05:00AV 2354 to Denver leaves the gate
15 h 14 apart on the timetable, overnight
AV 2354 leaves 15 h 14 after BA 2951 arrives on the timetable: more than half a day, so not a connection we count.