BR 608 then AA 3972 at O'Hare
Anchorage → Chicago → Bloomington-Normal
Timetable, Chicago time
20:03BR 608 from Anchorage at the gate
12:59AA 3972 to Bloomington-Normal leaves the gate
16 h 56 apart on the timetable, overnight
AA 3972 leaves 16 h 56 after BR 608 arrives on the timetable: more than half a day, so not a connection we count.