GQ 681 then A3 224 at Athens
Sofia → Athens → Kos
Timetable, Athens time
21:55GQ 681 from Sofia at the gate
15:40A3 224 to Kos leaves the gate
17 h 45 apart on the timetable, overnight
A3 224 leaves 17 h 45 after GQ 681 arrives on the timetable: more than half a day, so not a connection we count.