UA 1306 then WN 1749 at Denver
Sacramento → Denver → Dallas
Timetable, Denver time
12:09UA 1306 from Sacramento at the gate
05:35WN 1749 to Dallas leaves the gate
17 h 26 apart on the timetable, overnight
WN 1749 leaves 17 h 26 after UA 1306 arrives on the timetable: more than half a day, so not a connection we count.