AS 91 then UA 3906 at San Francisco
Los Angeles → San Francisco → Chicago O'Hare
Timetable, San Francisco time
17:21AS 91 from Los Angeles at the gatealso QR 2014, TN 2456, BA 7609
19:30UA 3906 to Chicago O'Hare leaves the gate
2 h 09 apart on the timetable
Today
From the airport’s board at 21:23 San Francisco time
17:07AS 91 reached the gate14 min early
19:25UA 3906 left the gate5 min early
2 h 18 between the gates
The last days
AS 91 and UA 3906 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.