WN 544 then AA 3913 at Charlotte
St Louis → Charlotte → Springfield
Timetable, Charlotte time
19:25WN 544 from St Louis at the gate
19:23AA 3913 to Springfield leaves the gate
23 h 58 apart on the timetable, overnight
AA 3913 leaves 23 h 58 after WN 544 arrives on the timetable: more than half a day, so not a connection we count.