UA 3883 then AS 257 at Boston
San Francisco → Boston → Seattle
Timetable, Boston time
08:16UA 3883 from San Francisco at the gate
17:44AS 257 to Seattle leaves the gate
9 h 28 apart on the timetable
The last days
UA 3883 and AS 257 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 Seattle
DL 79719:2511 h 09 after UA 3883 on the timetablenot a partner airline