Ryanair will launch a daily service between London Stansted and Sofia next summer.
The route, which will begin in May, will be the budget airline's second to Bulgaria, joining its four-times weekly Stansted-Plodiv service.
Ryanair spokesman Robin Kiely said: "Sofia is another key capital city airport and our second in Bulgaria, as we continue to grow Europe's largest route network, with more routes and flights and improved schedules."
The Irish carrier will launch three services from Israel to Budapest, Kaunas and Krakow later this year (see news, July 7).
Tom Newcombe