AA 2886 then UA 1779 at O'Hare
Tampa → Chicago → Washington
Timetable, Chicago time
09:00AA 2886 from Tampa at the gate
21:41UA 1779 to Washington leaves the gate
12 h 41 apart on the timetable
UA 1779 leaves 12 h 41 after AA 2886 arrives on the timetable: more than half a day, so not a connection we count.