BR 662 then UA 516 at O'Hare
Anchorage → Chicago → St Louis
Timetable, Chicago time
06:39BR 662 from Anchorage at the gate
20:10UA 516 to St Louis leaves the gate
13 h 31 apart on the timetable
UA 516 leaves 13 h 31 after BR 662 arrives on the timetable: more than half a day, so not a connection we count.