AA 3845 then K4 810 at O'Hare
Springfield (SPI) → Chicago → Anchorage
Timetable, Chicago time
07:30AA 3845 from Springfield (SPI) at the gate
04:00K4 810 to Anchorage leaves the gate
20 h 30 apart on the timetable, overnight
K4 810 leaves 20 h 30 after AA 3845 arrives on the timetable: more than half a day, so not a connection we count.