UA 3011 then UA 5 at Houston
São Paulo → Houston → London
Timetable, Houston time
06:36UA 3011 from São Paulo at the gate
19:00UA 5 to London leaves the gate
12 h 24 apart on the timetable
UA 5 leaves 12 h 24 after UA 3011 arrives on the timetable: more than half a day, so not a connection we count.