BR 646 then UA 1834 at O'Hare
Anchorage → Chicago → Tampa
Timetable, Chicago time
17:10BR 646 from Anchorage at the gate
11:05UA 1834 to Tampa leaves the gate
17 h 55 apart on the timetable, overnight
UA 1834 leaves 17 h 55 after BR 646 arrives on the timetable: more than half a day, so not a connection we count.