Berlin Brandenburg Airport BER to Bucharest BUH flight with Ryanair

Air Serbia is the national flag carrier of Serbia, with its main hub at Belgrade Nikola Tesla Airport. The airline's origins trace back to Aeroput, established in 1927, making it one of the oldest airlines in Europe. Rebranded as Air Serbia in 2013 after a partnership with Etihad Airways, the airline has since modernized its fleet and expanded its network. Air Serbia operates scheduled, seasonal, and charter flights to over 90 destinations across Europe, the Mediterranean, North America, Asia, and Africa. They offer both passenger and cargo services, and in cooperation with partner airlines, extend their reach to international destinations in Asia, Australia, North America, and Africa. The airline is a member of the International Air Transport Association (IATA).

Dan-Air was a British airline established in 1953 as a subsidiary of Davies and Newman, a London-based shipbroking firm. It began with a single aircraft and initially focused on cargo and passenger charter flights. Over its 39-year history, Dan-Air expanded significantly, becoming Britain's largest independent airline by the mid-1970s in terms of passengers and fleet size. The airline was an early adopter of jet aircraft in Britain, introducing de Havilland Comet jets in 1966 and becoming the first British operator of the Boeing 727 trijet in 1973. Dan-Air operated a diverse fleet for inclusive tour charters, scheduled services, and oil industry support flights, with hubs including London Gatwick and Berlin–Tegel. Facing financial difficulties, Dan-Air ceased operations in 1992 and was acquired by British Airways.