Edelweiss Air, the Swiss leisure airline, owned by Lufthansa announced it will be increasing the frequency of its flights to the Greek islands of Crete (Heraklion), Kos and Mykonos in the summer of 2020.
More specifically, the airline will increase its flights by one per week in each of the destination airports:
Zurich – Kos | Increase from 4 to 5 per week
Zurich – Mykonos | Increase from 4 to 5 per week
Zurich – Heraklion | Increase from 9 to 10 per week