UA 2417 then UA 3263 at Houston
Miami → Houston → Richmond
Timetable, Houston time
10:51UA 2417 from Miami at the gate
07:00UA 3263 to Richmond leaves the gate
20 h 09 apart on the timetable, overnight
UA 3263 leaves 20 h 09 after UA 2417 arrives on the timetable: more than half a day, so not a connection we count.