AF 8992 then AS 454 at Seattle
Amsterdam → Seattle → Los Angeles
Timetable, Seattle time
12:47AF 8992 from Amsterdam at the gate
16:59AS 454 to Los Angeles leaves the gate
4 h 12 apart on the timetable
Seattle’s board gives a departure time for only about 56% of its flights, so many days show no gate time.
The last days
AF 8992 and AS 454 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.