F9 1748 then WN 1749 at Denver
Phoenix Sky Harbor → Denver → Dallas
Timetable, Denver time
11:59F9 1748 from Phoenix Sky Harbor at the gate
05:35WN 1749 to Dallas leaves the gate
17 h 36 apart on the timetable, overnight
WN 1749 leaves 17 h 36 after F9 1748 arrives on the timetable: more than half a day, so not a connection we count.