SQ 1539 then AA 9423 at San Francisco
Boston → San Francisco → Everett
Timetable, San Francisco time
09:40SQ 1539 from Boston at the gate
19:03AA 9423 to Everett leaves the gate
9 h 23 apart on the timetable
The last days
SQ 1539 and AA 9423 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.
Later flights to Everett
No later flight to Everett on the timetable.