AA 3920 then AA 2753 at DFW
Amarillo → Dallas-Fort Worth → Valparaiso
Timetable, Dallas-Fort Worth time
06:20AA 3920 from Amarillo at the gate
19:24AA 2753 to Valparaiso leaves the gate
13 h 04 apart on the timetable
AA 2753 leaves 13 h 04 after AA 3920 arrives on the timetable: more than half a day, so not a connection we count.