UA 1970 then VS 4507 at San Francisco
Cleveland → San Francisco → Salt Lake City
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
13:20VS 4507 to Salt Lake City leaves the gatealso KE 6743, KL 7109, MU 8720
15 h 35 apart on the timetable, overnight
VS 4507 leaves 15 h 35 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.