F9 1748 then WN 878 at Denver
Phoenix Sky Harbor → Denver → Cincinnati
Timetable, Denver time
11:59F9 1748 from Phoenix Sky Harbor at the gate
11:45WN 878 to Cincinnati leaves the gate
23 h 46 apart on the timetable, overnight
WN 878 leaves 23 h 46 after F9 1748 arrives on the timetable: more than half a day, so not a connection we count.