DL 3968 then AA 2882 at Seattle
Vancouver → Seattle → Philadelphia
Timetable, Seattle time
16:53DL 3968 from Vancouver at the gate
09:15AA 2882 to Philadelphia leaves the gate
16 h 22 apart on the timetable, overnight
AA 2882 leaves 16 h 22 after DL 3968 arrives on the timetable: more than half a day, so not a connection we count.