Is there any tool / online search engine where you can give it a list of possible departing airports, and a list of possible arriving airports, and shows you all the possible flights (connecting or seperate) and/or airlines that operate between cities, that can take you there?

For example, I would give it:


  • Malta


  • Sofia
  • Varna
  • Bourgas

Yes. This Matrix search engine does exactly what you're asking for. See also this question.

A screenshot showing flights from Malta to either of the three airports, departing 15 February 2013, returning 22 February 2013:

matrix airfare search engine

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