UA 3922 then OO 307 at O'Hare
Savannah → Chicago → Moline
Timetable, Chicago time
02:36UA 3922 from Savannah at the gate
12:40OO 307 to Moline leaves the gate
10 h 04 apart on the timetable
The last days
UA 3922 and OO 307 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.