BR 18 then UA 3906 at San Francisco
Taipei → San Francisco → Chicago O'Hare
Timetable, San Francisco time
15:00BR 18 from Taipei at the gatealso TG 6252, CM 8011
19:30UA 3906 to Chicago O'Hare leaves the gate
4 h 30 apart on the timetable
Today
From the airport’s board at 15:13 San Francisco time
14:36BR 18 expected at the gate24 min early
19:30UA 3906 due to leave, no estimate yet
4 h 54 between the gates, on these times
The last days
BR 18 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.