AA 1234 then WN 544 at Charlotte
Pittsburgh → Charlotte → Baltimore
Timetable, Charlotte time
07:34AA 1234 from Pittsburgh at the gate
20:05WN 544 to Baltimore leaves the gate
12 h 31 apart on the timetable
WN 544 leaves 12 h 31 after AA 1234 arrives on the timetable: more than half a day, so not a connection we count.