AA 2208 then UA 3918 at O'Hare
St Louis → Chicago → Orlando
Timetable, Chicago time
12:59AA 2208 from St Louis at the gate
17:00UA 3918 to Orlando leaves the gate
4 h 01 apart on the timetable
The last days
AA 2208 and UA 3918 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.