4Y 55 then 4Y 900 at Frankfurt
Las Vegas → Frankfurt am Main → Dubrovnik
Timetable, Frankfurt am Main time
12:204Y 55 from Las Vegas at the gate
09:204Y 900 to Dubrovnik leaves the gate
21 h apart on the timetable, overnight
4Y 900 leaves 21 h after 4Y 55 arrives on the timetable: more than half a day, so not a connection we count.