DL 3764 then AA 2142 at Seattle
Vancouver → Seattle → Miami
Timetable, Seattle time
08:45DL 3764 from Vancouver at the gate
21:14AA 2142 to Miami leaves the gate
12 h 29 apart on the timetable
AA 2142 leaves 12 h 29 after DL 3764 arrives on the timetable: more than half a day, so not a connection we count.