AA 517 then UA 1769 at San Francisco
Chicago O'Hare → San Francisco → Miami
Timetable, San Francisco time
11:11AA 517 from Chicago O'Hare at the gatealso QF 4687
23:20UA 1769 to Miami leaves the gatealso CM 2876, NZ 2925, AZ 4495, EK 6427, VA 8392
12 h 09 apart on the timetable
UA 1769 leaves 12 h 09 after AA 517 arrives on the timetable: more than half a day, so not a connection we count.