AA 3845 then QR 8167 at O'Hare
Springfield (SPI) → Chicago → Doha
Timetable, Chicago time
07:30AA 3845 from Springfield (SPI) at the gate
04:40QR 8167 to Doha leaves the gate
21 h 10 apart on the timetable, overnight
QR 8167 leaves 21 h 10 after AA 3845 arrives on the timetable: more than half a day, so not a connection we count.