AV 2351 then AA 2663 at San Francisco
Denver → San Francisco → Philadelphia
Timetable, San Francisco time
11:41AV 2351 from Denver at the gate
23:59AA 2663 to Philadelphia leaves the gatealso EI 7356
12 h 18 apart on the timetable
AA 2663 leaves 12 h 18 after AV 2351 arrives on the timetable: more than half a day, so not a connection we count.