BR 646 then UA 5789 at O'Hare
Anchorage → Chicago → San Antonio
Timetable, Chicago time
17:10BR 646 from Anchorage at the gate
13:30UA 5789 to San Antonio leaves the gate
20 h 20 apart on the timetable, overnight
UA 5789 leaves 20 h 20 after BR 646 arrives on the timetable: more than half a day, so not a connection we count.