UA 799 then 7L 4871 at O'Hare
Grand Cayman → Chicago → Houston
Timetable, Chicago time
18:13UA 799 from Grand Cayman at the gate
20:307L 4871 to Houston leaves the gate
2 h 17 apart on the timetable
The last days
UA 799 and 7L 4871 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.