HOW TO GET TO SOFIA EASILY?
The cheapest and most affordable airlines are: EasyJet, WizzAir, RyanAir, which offer daily flights to Sofia Airport, Terminal 1, Terminal 2.
THE OFFICIAL SITES OF THE AIRLINES ARE:
https://www.easyjet.com/en
https://wizzair.com/bg
https://www.ryanair.com/gb/en/