AA 613 then AA 1277 at O'Hare
Washington National → Chicago → Denver
Timetable, Chicago time
09:16AA 613 from Washington National at the gate
11:55AA 1277 to Denver leaves the gate
2 h 39 apart on the timetable
The last days
AA 613 and AA 1277 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.