DL 5653 then AS 257 at Boston
Columbus (Ohio) → Boston → Seattle
Timetable, Boston time
19:42DL 5653 from Columbus (Ohio) at the gate
17:44AS 257 to Seattle leaves the gate
22 h 02 apart on the timetable, overnight
AS 257 leaves 22 h 02 after DL 5653 arrives on the timetable: more than half a day, so not a connection we count.