UA 5134 then AC 7138 at Denver
Prescott → Denver → Montréal
Timetable, Denver time
19:29UA 5134 from Prescott at the gate
12:00AC 7138 to Montréal leaves the gate
16 h 31 apart on the timetable, overnight
AC 7138 leaves 16 h 31 after UA 5134 arrives on the timetable: more than half a day, so not a connection we count.