UA 1970 then UA 630 at San Francisco
Cleveland → San Francisco → Chicago O'Hare
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
12:27UA 630 to Chicago O'Hare leaves the gatealso AC 5384, VA 8102, NZ 9305
14 h 42 apart on the timetable, overnight
UA 630 leaves 14 h 42 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.