FB 807 then A3 226 at Athens
Sofia → Athens → Kos
Timetable, Athens time
20:05FB 807 from Sofia at the gate
19:10A3 226 to Kos leaves the gate
23 h 05 apart on the timetable, overnight
A3 226 leaves 23 h 05 after FB 807 arrives on the timetable: more than half a day, so not a connection we count.