Are there nonstop flights from Kozani (KZI) to Argos Orestiko (KSO)?

Yes. Sky Express (Greece) fly this route. Flight time is about 34m.

Kozani → Argos Orestiko

Kozani National Airport Filippos (KZI) to Kastoria National Airport Aristotle (KSO)・51 km

Nonstop flights available (1 airline). Flight time about 34m. Nonstop return flights also operate.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.