WN 399 then WN 4525 at Phoenix
Austin → Phoenix → Kansas City
Timetable, Phoenix time
14:15WN 399 from Austin at the gate
15:30WN 4525 to Kansas City leaves the gate
1 h 15 apart on the timetable
The last days
WN 399 and WN 4525 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.