UA 1970 then WS 1501 at San Francisco
Cleveland → San Francisco → Calgary
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
16:40WS 1501 to Calgary leaves the gatealso QF 3363, EK 4659, FJ 6005, AM 7145, SK 9551, KL 9681
18 h 55 apart on the timetable, overnight
WS 1501 leaves 18 h 55 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.