UA 247 then CI 5239 at O'Hare
Memphis → Chicago → Anchorage
Timetable, Chicago time
09:00UA 247 from Memphis at the gate
21:55CI 5239 to Anchorage leaves the gate
12 h 55 apart on the timetable
CI 5239 leaves 12 h 55 after UA 247 arrives on the timetable: more than half a day, so not a connection we count.