DL 3968 then AA 3793 at Seattle
Vancouver → Seattle → Phoenix
Timetable, Seattle time
16:53DL 3968 from Vancouver at the gate
11:44AA 3793 to Phoenix leaves the gate
18 h 51 apart on the timetable, overnight
AA 3793 leaves 18 h 51 after DL 3968 arrives on the timetable: more than half a day, so not a connection we count.