AA 3674 then UA 4405 at O'Hare
Greenville-Spartanburg → Chicago → Springfield Branson National
Timetable, Chicago time
08:34AA 3674 from Greenville-Spartanburg at the gate
21:20UA 4405 to Springfield Branson National leaves the gate
12 h 46 apart on the timetable
UA 4405 leaves 12 h 46 after AA 3674 arrives on the timetable: more than half a day, so not a connection we count.