SQ 28 then AS 774 at Seattle
Singapore → Seattle → Los Angeles
Timetable, Seattle time
07:05SQ 28 from Singapore at the gate
17:45AS 774 to Los Angeles leaves the gate
10 h 40 apart on the timetable
Seattle’s board gives a departure time for only about 57% of its flights, so many days show no gate time.
The last days
SQ 28 and AS 774 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.