F9 1342 then UA 767 at O'Hare
Dallas-Fort Worth → Chicago → Denver
Timetable, Chicago time
15:31F9 1342 from Dallas-Fort Worth at the gate
14:30UA 767 to Denver leaves the gate
22 h 59 apart on the timetable, overnight
UA 767 leaves 22 h 59 after F9 1342 arrives on the timetable: more than half a day, so not a connection we count.