UA 441 then K4 810 at O'Hare
Washington National → Chicago → Anchorage
Timetable, Chicago time
09:00UA 441 from Washington National at the gate
04:00K4 810 to Anchorage leaves the gate
19 h apart on the timetable, overnight
K4 810 leaves 19 h after UA 441 arrives on the timetable: more than half a day, so not a connection we count.