UA 1969 then TP 4392 at San Francisco
Kahului → San Francisco → Boston
Timetable, San Francisco time
06:19UA 1969 from Kahului at the gatealso EK 6207
22:10TP 4392 to Boston leaves the gate
15 h 51 apart on the timetable
TP 4392 leaves 15 h 51 after UA 1969 arrives on the timetable: more than half a day, so not a connection we count.