UA 1401 then BR 643 at O'Hare
Dallas-Fort Worth → Chicago → Anchorage
Timetable, Chicago time
15:05UA 1401 from Dallas-Fort Worth at the gate
14:50BR 643 to Anchorage leaves the gate
23 h 45 apart on the timetable, overnight
BR 643 leaves 23 h 45 after UA 1401 arrives on the timetable: more than half a day, so not a connection we count.