UA 128 then UA 3235 at Houston
Rio De Janeiro → Houston → Louisville
Timetable, Houston time
05:45UA 128 from Rio De Janeiro at the gate
20:45UA 3235 to Louisville leaves the gate
15 h apart on the timetable
UA 3235 leaves 15 h after UA 128 arrives on the timetable: more than half a day, so not a connection we count.