Valencia VLC to Bucharest BUH flight with Dan Air

Lufthansa CityLine is a German regional airline and a wholly-owned subsidiary of Deutsche Lufthansa AG, operating as part of the Lufthansa Regional concept. Headquartered at Munich Airport, with hubs also at Frankfurt Airport, it operates a dense domestic and European network on behalf of its parent company. The airline primarily uses regional jets like the Bombardier CRJ900, along with Airbus A319s and A320neos, to connect smaller European cities to Lufthansa's major hubs. Lufthansa CityLine is known for its reliability in providing feeder traffic to Frankfurt and Munich.

Transavia France is a French low-cost airline established in 2006 and is part of the Air France-KLM group. It operates scheduled and charter flights primarily to leisure and metropolitan destinations across Europe and North Africa. The airline shares its corporate design, website, and operating model with its Dutch counterpart, Transavia. With its main base at Paris-Orly Airport, Transavia France has expanded to include bases in Marseille, Lyon, Nantes, Montpellier, and Bordeaux. It operates with a single-class cabin and a fleet of Boeing 737 aircraft, with plans to transition to the Airbus A320neo family.

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.

Helvetic Airways is a Swiss regional airline established in 2003, headquartered in Kloten with its fleet stationed at Zurich Airport. It operates short and medium-haul flights to European and North African destinations, focusing on leisure markets not served by other carriers. Helvetic Airways also conducts scheduled flights on behalf of Swiss International Air Lines and Lufthansa. The airline is known for its modern, environmentally friendly fleet, primarily consisting of Embraer E-Jet aircraft, and emphasizes Swiss quality, efficiency, punctuality, and customer service.