AA 9928 then UA 2296 at O'Hare
New York LaGuardia → Chicago → Boston
Timetable, Chicago time
06:45AA 9928 from New York LaGuardia at the gate
21:20UA 2296 to Boston leaves the gate
14 h 35 apart on the timetable
UA 2296 leaves 14 h 35 after AA 9928 arrives on the timetable: more than half a day, so not a connection we count.