DL 3122 then DL 140 at Atlanta
Pittsburgh → Atlanta → Brussels
Timetable, Atlanta time
22:00DL 3122 from Pittsburgh at the gate
20:40DL 140 to Brussels leaves the gate
22 h 40 apart on the timetable, overnight
DL 140 leaves 22 h 40 after DL 3122 arrives on the timetable: more than half a day, so not a connection we count.