WN 4715 then WN 528 at Phoenix
Tulsa → Phoenix → Houston Hobby
Timetable, Phoenix time
06:55WN 4715 from Tulsa at the gate
11:20WN 528 to Houston Hobby leaves the gate
4 h 25 apart on the timetable
The last days
WN 4715 and WN 528 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.