DL 2184 then UA 571 at Atlanta
Lexington → Atlanta → San Francisco
Timetable, Atlanta time
07:29DL 2184 from Lexington at the gate
07:00UA 571 to San Francisco leaves the gate
23 h 31 apart on the timetable, overnight
UA 571 leaves 23 h 31 after DL 2184 arrives on the timetable: more than half a day, so not a connection we count.