Bourgas airport executive director Kalin Barzov told Darik Radio that eight low-cost companies planned flights to Bourgas.
Three low-cost companies - Wizz Air, Sky Europe and Norwegian Air Shuttle AS - already flew to Bourgas, Barzov said.
Nearly two million passengers were expected at Bourgas airport in 2007 thanks to low-cost airlines, Darik said.
Four other low-cost airlines planned flights to Bulgaria, Dnevnik daily reported last week.
Italy's Myair, Ireland's Ryanair, the UK's Easy Jet and Germany's GermanWings, intended to fly to Bulgaria's capital after the country's EU accession on January 1 2007.