DL 961 then AA 3637 at DFW
Atlanta → Dallas-Fort Worth → Lubbock
Timetable, Dallas-Fort Worth time
11:16DL 961 from Atlanta at the gate
10:50AA 3637 to Lubbock leaves the gate
23 h 34 apart on the timetable, overnight
AA 3637 leaves 23 h 34 after DL 961 arrives on the timetable: more than half a day, so not a connection we count.