The ex Thomas Cook Scandinavia division of collapsed Thomas Cook as reported last October did not affected for the main company fall.
The new brand of Scandinavian division will be SUNCLASS Airlines. The re-brand of Thomas Cook Scandinavia completed few week ago and Skiathos is included as a Greek destination as all these years.

SUNCLASS Airlines summer 2021 schedule for Skiathos showing two flights per week from two destinations.  Every Tuesday Copenhagen (DK-1128/1129) and Oslo (DK-1046/1047) but there is a possibility to have every Sunday Göteborg and/or Stockholm. It is too early to finalize any information regarding schedules from December 2020 for next summer.

Here is the new brand of SUNCALSS Airlines.

The new logo and the interior of SUNCLASS Airlines

The new livery on Airbus A321 during painting in mid December 2020. It looks very nice! We are waiting to see it in Skiathos Spring 2021!