B6 2379 then UA 1902 at Houston
Fort Lauderdale → Houston → Guatemala City
Timetable, Houston time
16:56B6 2379 from Fort Lauderdale at the gate
16:43UA 1902 to Guatemala City leaves the gate
23 h 47 apart on the timetable, overnight
UA 1902 leaves 23 h 47 after B6 2379 arrives on the timetable: more than half a day, so not a connection we count.