UA 46 then X3 4578 at Frankfurt
Houston → Frankfurt am Main → Larnaca
Timetable, Frankfurt am Main time
11:40UA 46 from Houston at the gate
05:45X3 4578 to Larnaca leaves the gate
18 h 05 apart on the timetable, overnight
X3 4578 leaves 18 h 05 after UA 46 arrives on the timetable: more than half a day, so not a connection we count.