AA 1639 then KL 7908 at San Francisco
Miami → San Francisco → Los Angeles
Timetable, San Francisco time
23:59AA 1639 from Miami at the gate
09:54KL 7908 to Los Angeles leaves the gate
9 h 55 apart on the timetable, overnight
The last days
AA 1639 and KL 7908 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.