UA 1780 then WS 1501 at San Francisco
Dallas-Fort Worth → San Francisco → Calgary
Timetable, San Francisco time
17:17UA 1780 from Dallas-Fort Worth at the gatealso AC 3148, OZ 6314
16:40WS 1501 to Calgary leaves the gatealso QF 3363, EK 4659, FJ 6005, KE 6534, AM 7145, SK 9551, KL 9681
23 h 23 apart on the timetable, overnight
WS 1501 leaves 23 h 23 after UA 1780 arrives on the timetable: more than half a day, so not a connection we count.