UA 5570 then OO 9922 at O'Hare
Harrisburg → Chicago → Charlotte
Timetable, Chicago time
07:50UA 5570 from Harrisburg at the gate
11:40OO 9922 to Charlotte leaves the gate
3 h 50 apart on the timetable
Today
From the airport’s board at 19:59 Chicago time
07:21UA 5570 reached the gate29 min early
14:42OO 9922 left the gate3 h 02 late
7 h 21 between the gates
The last days
UA 5570 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.