DL 3968 then DL 2613 at Seattle
Vancouver → Seattle → San Diego
Timetable, Seattle time
16:53DL 3968 from Vancouver at the gate
15:18DL 2613 to San Diego leaves the gate
22 h 25 apart on the timetable, overnight
DL 2613 leaves 22 h 25 after DL 3968 arrives on the timetable: more than half a day, so not a connection we count.