UA 3878 then UA 4064 at Houston
CWF → Houston → Detroit
Timetable, Houston time
10:46UA 3878 from CWF at the gate
10:03UA 4064 to Detroit leaves the gate
23 h 17 apart on the timetable, overnight
UA 4064 leaves 23 h 17 after UA 3878 arrives on the timetable: more than half a day, so not a connection we count.