UA 5134 then AA 1277 at Denver
Prescott → Denver → Chicago O'Hare
Timetable, Denver time
19:29UA 5134 from Prescott at the gate
14:30AA 1277 to Chicago O'Hare leaves the gate
19 h 01 apart on the timetable, overnight
AA 1277 leaves 19 h 01 after UA 5134 arrives on the timetable: more than half a day, so not a connection we count.