Klagenfurt Airport will shortly also "get back" the second line route. After Austrian Airlines reactivated the connection to the Vienna hub, its sister company Eurowings will follow in a few days.
This will fly to Klagenfurt from Cologne / Bonn four times a week. The "comeback" is announced for June 26, 2021. This would then restore the two line routes that are offered from the Carinthian airport.
The summer flight schedule for 2021 in Klagenfurt is also small in the charter sector. Only the Greek Skyexpress with ATR72 is currently registered. On behalf of Springer Reisen, there are flights to Skiathos on Fridays until September 24, 2021.