UA 1702 then TP 4392 at San Francisco
Bozeman → San Francisco → Boston
Timetable, San Francisco time
17:50UA 1702 from Bozeman at the gatealso NZ 9415
10:44TP 4392 to Boston leaves the gate
16 h 54 apart on the timetable, overnight
TP 4392 leaves 16 h 54 after UA 1702 arrives on the timetable: more than half a day, so not a connection we count.