AC 3344 then TP 4392 at San Francisco
Portland (Oregon) → San Francisco → Boston
Timetable, San Francisco time
12:58AC 3344 from Portland (Oregon) at the gatealso EK 6319
10:44TP 4392 to Boston leaves the gate
21 h 46 apart on the timetable, overnight
TP 4392 leaves 21 h 46 after AC 3344 arrives on the timetable: more than half a day, so not a connection we count.