UA 3878 then B6 932 at Houston
Melbourne (Florida) → Houston → Boston
Timetable, Houston time
01:58UA 3878 from Melbourne (Florida) at the gate
14:01B6 932 to Boston leaves the gate
12 h 03 apart on the timetable
B6 932 leaves 12 h 03 after UA 3878 arrives on the timetable: more than half a day, so not a connection we count.