AA 3166 then CZ 1634 at San Francisco
Philadelphia → San Francisco → Chicago O'Hare
Timetable, San Francisco time
19:51AA 3166 from Philadelphia at the gatealso BA 5438
23:39CZ 1634 to Chicago O'Hare leaves the gate
3 h 48 apart on the timetable
The last days
AA 3166 and CZ 1634 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.
Later flights to Chicago O'Hare
No later flight to Chicago O'Hare on the timetable.