AA 379 then AS 288 at Boston
Dallas-Fort Worth → Boston → Seattle
Timetable, Boston time
13:31AA 379 from Dallas-Fort Worth at the gate
16:58AS 288 to Seattle leaves the gate
3 h 27 apart on the timetable
The last days
AA 379 and AS 288 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.