On our knowledge there are no direct flights Belfast - Sofia.
From our control systems the cheapest prices for flights Belfast - Sofia are from the Air companies British Airways, Bulgaria Air, KLM, Air Berlin, Air France, KLM.
The prices displayed include all taxes, but they do NOT include any possible agency fees or management charges for issuing the air ticket. Our offers are NOT monitored in real time. Some low-cost companies may require a supplement for check-in luggage.