BR 646 then UA 3459 at O'Hare
Anchorage → Chicago → Harrisburg
Timetable, Chicago time
17:10BR 646 from Anchorage at the gate
15:55UA 3459 to Harrisburg leaves the gate
22 h 45 apart on the timetable, overnight
UA 3459 leaves 22 h 45 after BR 646 arrives on the timetable: more than half a day, so not a connection we count.