UA 2847 then OO 9922 at O'Hare
San Francisco → Chicago → Charlotte
Timetable, Chicago time
07:21UA 2847 from San Francisco at the gate
11:40OO 9922 to Charlotte leaves the gate
4 h 19 apart on the timetable
Today
From the airport’s board at 14:53 Chicago time
07:21UA 2847 is cancelled
11:40OO 9922 due to leave, no estimate yet
The last days
UA 2847 and OO 9922 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.