WN 4303 then AA 901 at San Francisco
Denver → San Francisco → Phoenix
Timetable, San Francisco time
10:15WN 4303 from Denver at the gate
19:05AA 901 to Phoenix leaves the gatealso QR 8216
8 h 50 apart on the timetable
The last days
WN 4303 and AA 901 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.