DL 521 then AA 1044 at DFW
Los Angeles → Dallas-Fort Worth → Louisville
Timetable, Dallas-Fort Worth time
15:02DL 521 from Los Angeles at the gate
09:39AA 1044 to Louisville leaves the gate
18 h 37 apart on the timetable, overnight
AA 1044 leaves 18 h 37 after DL 521 arrives on the timetable: more than half a day, so not a connection we count.