AS 615 then DL 936 at Seattle
St Louis → Seattle → Anchorage
Timetable, Seattle time
08:36AS 615 from St Louis at the gate
20:40DL 936 to Anchorage leaves the gate
12 h 04 apart on the timetable
DL 936 leaves 12 h 04 after AS 615 arrives on the timetable: more than half a day, so not a connection we count.