DL 3122 then DL 475 at Atlanta
Pittsburgh → Atlanta → Jackson (Mississippi)
Timetable, Atlanta time
22:00DL 3122 from Pittsburgh at the gate
20:15DL 475 to Jackson (Mississippi) leaves the gate
22 h 15 apart on the timetable, overnight
DL 475 leaves 22 h 15 after DL 3122 arrives on the timetable: more than half a day, so not a connection we count.