UA 751 then AV 2352 at San Francisco
Portland (Oregon) → San Francisco → Burbank
Timetable, San Francisco time
15:15UA 751 from Portland (Oregon) at the gatealso CM 1419
07:15AV 2352 to Burbank leaves the gate
16 h apart on the timetable, overnight
AV 2352 leaves 16 h after UA 751 arrives on the timetable: more than half a day, so not a connection we count.