CZ 435 then UA 539 at O'Hare
Anchorage → Chicago → Dallas-Fort Worth
Timetable, Chicago time
15:58CZ 435 from Anchorage at the gate
07:00UA 539 to Dallas-Fort Worth leaves the gate
15 h 02 apart on the timetable, overnight
UA 539 leaves 15 h 02 after CZ 435 arrives on the timetable: more than half a day, so not a connection we count.