UA 1561 then AV 2352 at San Francisco
Denver → San Francisco → Burbank
Timetable, San Francisco time
13:12UA 1561 from Denver at the gatealso AC 3614, VA 8349, NZ 9074
07:15AV 2352 to Burbank leaves the gate
18 h 03 apart on the timetable, overnight
AV 2352 leaves 18 h 03 after UA 1561 arrives on the timetable: more than half a day, so not a connection we count.