AC 4127 then TP 4392 at San Francisco
Palm Springs → San Francisco → Boston
Timetable, San Francisco time
09:30AC 4127 from Palm Springs at the gatealso UA 6052, NZ 9548
22:10TP 4392 to Boston leaves the gate
12 h 40 apart on the timetable
TP 4392 leaves 12 h 40 after AC 4127 arrives on the timetable: more than half a day, so not a connection we count.