BR 646 then UA 5411 at O'Hare
Anchorage → Chicago → Louisville
Timetable, Chicago time
17:10BR 646 from Anchorage at the gate
11:04UA 5411 to Louisville leaves the gate
17 h 54 apart on the timetable, overnight
UA 5411 leaves 17 h 54 after BR 646 arrives on the timetable: more than half a day, so not a connection we count.