UA 1306 then WN 878 at Denver
Sacramento → Denver → Cincinnati
Timetable, Denver time
12:09UA 1306 from Sacramento at the gate
11:45WN 878 to Cincinnati leaves the gate
23 h 36 apart on the timetable, overnight
WN 878 leaves 23 h 36 after UA 1306 arrives on the timetable: more than half a day, so not a connection we count.