WN 579 then WN 3521 at Phoenix
Baltimore → Phoenix → Santa Ana
Timetable, Phoenix time
13:25WN 579 from Baltimore at the gate
17:25WN 3521 to Santa Ana leaves the gate
4 h apart on the timetable
The last days
WN 579 and WN 3521 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.