AA 1402 then WN 2657 at Phoenix
Tampa → Phoenix → Denver
Timetable, Phoenix time
19:44AA 1402 from Tampa at the gate
20:35WN 2657 to Denver leaves the gate
51 min apart on the timetable
The last days
AA 1402 and WN 2657 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.