AA 9909 then WN 8700 at Denver
Los Angeles → Denver → Kansas City
Timetable, Denver time
16:45AA 9909 from Los Angeles at the gate
20:00WN 8700 to Kansas City leaves the gate
3 h 15 apart on the timetable
The last days
AA 9909 and WN 8700 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.