CI 5176 then UA 2376 at San Francisco
Taipei → San Francisco → Newark
Timetable, San Francisco time
14:26CI 5176 from Taipei at the gate
23:15UA 2376 to Newark leaves the gate
8 h 49 apart on the timetable
The last days
CI 5176 and UA 2376 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.