UA 671 then WN 131 at Denver
Jacksonville → Denver → Cancún
Timetable, Denver time
10:02UA 671 from Jacksonville at the gate
08:45WN 131 to Cancún leaves the gate
22 h 43 apart on the timetable, overnight
WN 131 leaves 22 h 43 after UA 671 arrives on the timetable: more than half a day, so not a connection we count.