PD 6428 then CI 5346 at San Francisco
Chicago O'Hare → San Francisco → Atlanta
Timetable, San Francisco time
16:19PD 6428 from Chicago O'Hare at the gate
14:10CI 5346 to Atlanta leaves the gate
21 h 51 apart on the timetable, overnight
CI 5346 leaves 21 h 51 after PD 6428 arrives on the timetable: more than half a day, so not a connection we count.