BR 608 then AA 1366 at O'Hare
Anchorage → Chicago → Denver
Timetable, Chicago time
20:03BR 608 from Anchorage at the gate
11:54AA 1366 to Denver leaves the gate
15 h 51 apart on the timetable, overnight
AA 1366 leaves 15 h 51 after BR 608 arrives on the timetable: more than half a day, so not a connection we count.