AA 2591 then AA 2230 at Miami
Boston → Miami → Houston
Timetable, Miami time
08:37AA 2591 from Boston at the gate
21:59AA 2230 to Houston leaves the gate
13 h 22 apart on the timetable
AA 2230 leaves 13 h 22 after AA 2591 arrives on the timetable: more than half a day, so not a connection we count.