UA 1970 then UA 2831 at San Francisco
Cleveland → San Francisco → Houston
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
14:30UA 2831 to Houston leaves the gate
16 h 45 apart on the timetable, overnight
UA 2831 leaves 16 h 45 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.