CZ 1636 then VA 8085 at San Francisco
Chicago O'Hare → San Francisco → Houston
Timetable, San Francisco time
19:59CZ 1636 from Chicago O'Hare at the gatealso QF 3241, AA 3246, FJ 5118, BA 5318, GF 6770, EI 7510
16:40VA 8085 to Houston leaves the gatealso OZ 9521
20 h 41 apart on the timetable, overnight
VA 8085 leaves 20 h 41 after CZ 1636 arrives on the timetable: more than half a day, so not a connection we count.