The expansion will double the number of connections offered by the ULCC from the Bulgarian airport and comes as easyJet and Blue Air add new routes to the city.
The budget airline will station a single Airbus A320 in Tuzla in June 2015 to open four new routes to Munich Memmingen and Oslo Torp, from June 26, 2015, and Frankfurt Hahn and Stockholm Skavsta from June 28, 2015. The addition of these services will grow its total network from Tuzla to nine destinations in five countries.
Dortmund is the 2nd destination from Sibiu after the London Luton service began operations on 14 June. The service is initially to operate twice weekly, with one of its Airbus A320 aircraft.