BR 646 then AA 1159 at O'Hare
Anchorage → Chicago → Miami
Timetable, Chicago time
06:51BR 646 from Anchorage at the gate
18:59AA 1159 to Miami leaves the gate
12 h 08 apart on the timetable
AA 1159 leaves 12 h 08 after BR 646 arrives on the timetable: more than half a day, so not a connection we count.