AA 2124 then UA 3914 at O'Hare
Indianapolis → Chicago → Houston
Timetable, Chicago time
06:01AA 2124 from Indianapolis at the gate
20:30UA 3914 to Houston leaves the gate
14 h 29 apart on the timetable
UA 3914 leaves 14 h 29 after AA 2124 arrives on the timetable: more than half a day, so not a connection we count.