AA 4933 then UA 3914 at O'Hare
Des Moines → Chicago → Houston
Timetable, Chicago time
15:39AA 4933 from Des Moines at the gate
20:30UA 3914 to Houston leaves the gate
4 h 51 apart on the timetable
The last days
AA 4933 and UA 3914 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.