UA 1970 then WN 1652 at San Francisco
Cleveland → San Francisco → Denver
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
13:45WN 1652 to Denver leaves the gate
16 h apart on the timetable, overnight
WN 1652 leaves 16 h after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.