WN 188 then WN 867 at Phoenix
Austin → Phoenix → Denver
Timetable, Phoenix time
15:50WN 188 from Austin at the gate
21:50WN 867 to Denver leaves the gate
6 h apart on the timetable
The last days
WN 188 and WN 867 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.