DL 609 then CI 5345 at Atlanta
Cancún → Atlanta → San Francisco
Timetable, Atlanta time
10:55DL 609 from Cancún at the gate
23:46CI 5345 to San Francisco leaves the gate
12 h 51 apart on the timetable
CI 5345 leaves 12 h 51 after DL 609 arrives on the timetable: more than half a day, so not a connection we count.