UA 2248 then B6 2180 at Houston
Mexico City → Houston → Fort Lauderdale
Timetable, Houston time
16:59UA 2248 from Mexico City at the gate
16:55B6 2180 to Fort Lauderdale leaves the gate
23 h 56 apart on the timetable, overnight
B6 2180 leaves 23 h 56 after UA 2248 arrives on the timetable: more than half a day, so not a connection we count.