WN 136 then AA 2876 at Phoenix
Denver → Phoenix → Spokane
Timetable, Phoenix time
11:50WN 136 from Denver at the gate
20:20AA 2876 to Spokane leaves the gate
8 h 30 apart on the timetable
The last days
WN 136 and AA 2876 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.