AS 725 then DL 635 at San Francisco
Seattle → San Francisco → Atlanta
Timetable, San Francisco time
09:41AS 725 from Seattle at the gatealso QR 2163, QR 2973, CX 7865, QR 8864
21:42DL 635 to Atlanta leaves the gate
12 h 01 apart on the timetable
DL 635 leaves 12 h 01 after AS 725 arrives on the timetable: more than half a day, so not a connection we count.