DL 5508 then CI 5345 at Atlanta
Tri-Cities → Atlanta → San Francisco
Timetable, Atlanta time
20:29DL 5508 from Tri-Cities at the gate
12:45CI 5345 to San Francisco leaves the gate
16 h 16 apart on the timetable, overnight
CI 5345 leaves 16 h 16 after DL 5508 arrives on the timetable: more than half a day, so not a connection we count.