WN 591 then WN 131 at Denver
Baltimore → Denver → Cancún
Timetable, Denver time
10:15WN 591 from Baltimore at the gate
08:45WN 131 to Cancún leaves the gate
22 h 30 apart on the timetable, overnight
WN 131 leaves 22 h 30 after WN 591 arrives on the timetable: more than half a day, so not a connection we count.