UA 340 then B6 2180 at Houston
Boston → Houston → Fort Lauderdale
Timetable, Houston time
17:08UA 340 from Boston at the gate
16:55B6 2180 to Fort Lauderdale leaves the gate
23 h 47 apart on the timetable, overnight
B6 2180 leaves 23 h 47 after UA 340 arrives on the timetable: more than half a day, so not a connection we count.