WN 3404 then AA 619 at Miami
Denver → Miami → Chicago O'Hare
Timetable, Miami time
18:30WN 3404 from Denver at the gate
20:00AA 619 to Chicago O'Hare leaves the gate
1 h 30 apart on the timetable
The last days
WN 3404 and AA 619 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.