UA 784 then UA 2004 at Denver
Mexico City → Denver → Chicago O'Hare
Timetable, Denver time
11:54UA 784 from Mexico City at the gate
15:14UA 2004 to Chicago O'Hare leaves the gate
3 h 20 apart on the timetable
Today
From the airport’s board at 17:09 Denver time
11:44UA 784 reached the gate10 min early
18:32UA 2004 expected to leave the gate3 h 18 late
6 h 48 between the gates, on these times
The last days
UA 784 and UA 2004 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.