UA 1780 then TP 4392 at San Francisco
Dallas-Fort Worth → San Francisco → Boston
Timetable, San Francisco time
17:17UA 1780 from Dallas-Fort Worth at the gatealso AC 3148, VA 8579, NZ 9092
10:44TP 4392 to Boston leaves the gate
17 h 27 apart on the timetable, overnight
TP 4392 leaves 17 h 27 after UA 1780 arrives on the timetable: more than half a day, so not a connection we count.