UA 340 then CI 5346 at San Francisco
Houston → San Francisco → Atlanta
Timetable, San Francisco time
21:46UA 340 from Houston at the gatealso EK 6155, NZ 9208, OZ 9522
16:00CI 5346 to Atlanta leaves the gate
18 h 14 apart on the timetable, overnight
CI 5346 leaves 18 h 14 after UA 340 arrives on the timetable: more than half a day, so not a connection we count.