WN 893 then UA 675 at Denver
Oklahoma City → Denver → Chicago O'Hare
Timetable, Denver time
18:35WN 893 from Oklahoma City at the gate
15:50UA 675 to Chicago O'Hare leaves the gate
21 h 15 apart on the timetable, overnight
UA 675 leaves 21 h 15 after WN 893 arrives on the timetable: more than half a day, so not a connection we count.