A3 275 then W6 2442 at Athens
Chios → Athens → Budapest
Timetable, Athens time
17:00A3 275 from Chios at the gate
09:55W6 2442 to Budapest leaves the gate
16 h 55 apart on the timetable, overnight
W6 2442 leaves 16 h 55 after A3 275 arrives on the timetable: more than half a day, so not a connection we count.