DL 823 then WS 1501 at San Francisco
Atlanta → San Francisco → Calgary
Timetable, San Francisco time
17:16DL 823 from Atlanta at the gatealso AM 3256, LA 6318
16:40WS 1501 to Calgary leaves the gatealso QF 3363, EK 4659, FJ 6005, DL 6939, AM 7145, SK 9551, KL 9681
23 h 24 apart on the timetable, overnight
WS 1501 leaves 23 h 24 after DL 823 arrives on the timetable: more than half a day, so not a connection we count.