UA 2038 then TP 4392 at San Francisco
Houston → San Francisco → Boston
Timetable, San Francisco time
21:01UA 2038 from Houston at the gate
10:44TP 4392 to Boston leaves the gate
13 h 43 apart on the timetable, overnight
TP 4392 leaves 13 h 43 after UA 2038 arrives on the timetable: more than half a day, so not a connection we count.