DL 3968 then AS 438 at Seattle
Vancouver → Seattle → Houston
Timetable, Seattle time
16:53DL 3968 from Vancouver at the gate
10:23AS 438 to Houston leaves the gate
17 h 30 apart on the timetable, overnight
AS 438 leaves 17 h 30 after DL 3968 arrives on the timetable: more than half a day, so not a connection we count.