UA 751 then 7L 9790 at O'Hare
Charlotte → Chicago → Houston
Timetable, Chicago time
07:25UA 751 from Charlotte at the gate
12:207L 9790 to Houston leaves the gate
4 h 55 apart on the timetable
The last days
UA 751 and 7L 9790 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.