DL 9888 then DL 437 at LAX
Taipei → Los Angeles → Boston
Timetable, Los Angeles time
07:11DL 9888 from Taipei at the gate
10:59DL 437 to Boston leaves the gate
3 h 48 apart on the timetable
The last days
DL 9888 and DL 437 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.