DL 1867 then DL 3122 at Atlanta
St. George → Atlanta → Pittsburgh
Timetable, Atlanta time
19:50DL 1867 from St. George at the gate
17:08DL 3122 to Pittsburgh leaves the gate
21 h 18 apart on the timetable, overnight
DL 3122 leaves 21 h 18 after DL 1867 arrives on the timetable: more than half a day, so not a connection we count.