AA 1820 then AA 2403 at DFW
Ontario → Dallas-Fort Worth → Atlanta
Timetable, Dallas-Fort Worth time
15:35AA 1820 from Ontario at the gate
15:06AA 2403 to Atlanta leaves the gate
23 h 31 apart on the timetable, overnight
AA 2403 leaves 23 h 31 after AA 1820 arrives on the timetable: more than half a day, so not a connection we count.