DL 3968 then AS 374 at Seattle
Vancouver → Seattle → Austin
Timetable, Seattle time
16:53DL 3968 from Vancouver at the gate
11:42AS 374 to Austin leaves the gate
18 h 49 apart on the timetable, overnight
AS 374 leaves 18 h 49 after DL 3968 arrives on the timetable: more than half a day, so not a connection we count.