F9 4372 then WN 554 at Denver
Santa Ana → Denver → Phoenix Sky Harbor
Timetable, Denver time
15:02F9 4372 from Santa Ana at the gate
19:40WN 554 to Phoenix Sky Harbor leaves the gate
4 h 38 apart on the timetable
The last days
F9 4372 and WN 554 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.