CI 5234 then UA 2638 at O'Hare
Anchorage → Chicago → Houston
Timetable, Chicago time
19:25CI 5234 from Anchorage at the gate
10:34UA 2638 to Houston leaves the gate
15 h 09 apart on the timetable, overnight
UA 2638 leaves 15 h 09 after CI 5234 arrives on the timetable: more than half a day, so not a connection we count.