I am Ukrainian and in early stages of planning trip to conference in Bulgaria later this year.
Strangely there seems to be no direct flights from Kiev to Sofia. From quick search the most affordable routes seem to go through Schengen area (Paris, Vienna, etc), both directions.
Is Bulgarian visa sufficient to make such a trip or would I need anything extra to transit through airport in Schengen area?
Does it count as "international" airport area, since Bulgaria is part of European Union, however not of Schengen area?