AA 517 then UA 3919 at San Francisco
Chicago O'Hare → San Francisco → Denver
Timetable, San Francisco time
11:11AA 517 from Chicago O'Hare at the gatealso QF 4687
14:00UA 3919 to Denver leaves the gate
2 h 49 apart on the timetable
Today
From the airport’s board at 10:57 San Francisco time
10:30AA 517 reached the gate41 min early
14:00UA 3919 due to leave, no estimate yet
3 h 30 between the gates, on these times
The last days
AA 517 and UA 3919 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.