MQ 3553 then AA 2279 at Miami
New Orleans → Miami → Chicago O'Hare
Timetable, Miami time
12:55MQ 3553 from New Orleans at the gate
18:30AA 2279 to Chicago O'Hare leaves the gate
5 h 35 apart on the timetable
The last days
MQ 3553 and AA 2279 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.