A3 293 then A3 278 at Athens
Kefalonia → Athens → Chios
Timetable, Athens time
21:05A3 293 from Kefalonia at the gate
18:30A3 278 to Chios leaves the gate
21 h 25 apart on the timetable, overnight
A3 278 leaves 21 h 25 after A3 293 arrives on the timetable: more than half a day, so not a connection we count.