DL 8940 then AA 6457 at Phoenix
Denver → Phoenix → Tucson
Timetable, Phoenix time
15:36DL 8940 from Denver at the gate
18:51AA 6457 to Tucson leaves the gate
3 h 15 apart on the timetable
The last days
DL 8940 and AA 6457 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.