AA 9928 then UA 312 at O'Hare
New York LaGuardia → Chicago → Austin
Timetable, Chicago time
06:45AA 9928 from New York LaGuardia at the gate
19:55UA 312 to Austin leaves the gate
13 h 10 apart on the timetable
UA 312 leaves 13 h 10 after AA 9928 arrives on the timetable: more than half a day, so not a connection we count.