AA 1363 then AA 2753 at DFW
St Louis → Dallas-Fort Worth → Valparaiso
Timetable, Dallas-Fort Worth time
17:21AA 1363 from St Louis at the gate
16:51AA 2753 to Valparaiso leaves the gate
23 h 30 apart on the timetable, overnight
AA 2753 leaves 23 h 30 after AA 1363 arrives on the timetable: more than half a day, so not a connection we count.