DL 1249 then UA 571 at Atlanta
Miami → Atlanta → San Francisco
Timetable, Atlanta time
08:08DL 1249 from Miami at the gate
07:00UA 571 to San Francisco leaves the gate
22 h 52 apart on the timetable, overnight
UA 571 leaves 22 h 52 after DL 1249 arrives on the timetable: more than half a day, so not a connection we count.