AS 414 then WS 1553 at Seattle
Austin → Seattle → Calgary
Timetable, Seattle time
20:33AS 414 from Austin at the gate
14:30WS 1553 to Calgary leaves the gate
17 h 57 apart on the timetable, overnight
WS 1553 leaves 17 h 57 after AS 414 arrives on the timetable: more than half a day, so not a connection we count.