AA 3438 then UA 5207 at O'Hare
El Paso → Chicago → Denver
Timetable, Chicago time
11:10AA 3438 from El Paso at the gate
21:00UA 5207 to Denver leaves the gate
9 h 50 apart on the timetable
Today
From the airport’s board at 20:43 Chicago time
11:10AA 3438 is cancelled
21:00UA 5207 due to leave, no estimate yet
The last days
AA 3438 and UA 5207 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.