X3 4579 then BT 246 at Frankfurt
Larnaca → Frankfurt am Main → Riga
Timetable, Frankfurt am Main time
22:00X3 4579 from Larnaca at the gate
19:20BT 246 to Riga leaves the gate
21 h 20 apart on the timetable, overnight
BT 246 leaves 21 h 20 after X3 4579 arrives on the timetable: more than half a day, so not a connection we count.