B6 811 then AA 1715 at O'Hare
Boston → Chicago → Austin
Timetable, Chicago time
19:17B6 811 from Boston at the gate
19:00AA 1715 to Austin leaves the gate
23 h 43 apart on the timetable, overnight
AA 1715 leaves 23 h 43 after B6 811 arrives on the timetable: more than half a day, so not a connection we count.