Hello Keyvon,
Thanks for the Volos information.
Skiathos is not new for Bristol.
Looking at old timetables etc I note that Intereuropean (airline of the Welsh Aspro tour company, later absorbed into Airtours) flew there from Bristol in the summer 0f 1993.
There was then a gap until 2002 when an airline called Nordic Air Link (MD 83s I think) operated to Skiathos that summer - not sure who for.
Summers 2003, 2004 and 2005 saw a joint flight to Skiathos and Kavala, operated by Azzurria (seem to remember they had an A320 based at BRS in summer 2003), Islandsflug (2004) and XL (2005).
Summers 2006 and 2007 saw XL still flying to Skiathos but Volos replaced Kavala as the double drop. 2008 and 2009 saw Skiathos, Kavala and Volos axed, so it looks as though Viking are reprising the XL operation of 2006 and 2007.