UA 368 then OO 391F at O'Hare
San Francisco → Chicago → Detroit
Timetable, Chicago time
05:47UA 368 from San Francisco at the gate
14:30OO 391F to Detroit leaves the gate
8 h 43 apart on the timetable
The last days
UA 368 and OO 391F 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.