CityJet is an Irish regional airline with headquarters in Swords, County Dublin. It operates mainly out of London City Airport and operates under its own brand as well as wet-lease services on behalf of its partner Air France, which was the main owner until May 2014 when CityJet was sold to German owners Intro Aviation. The airline also owns and operates maintenance facilities at Dublin Airport. From November 2017 CityJet will end its franchise agreement with Air France. This will result in the closure of their base at Paris–Charles de Gaulle Airport.

The airline was established on 28 September 1992 and started scheduled operations on 12 January 1994. It was founded by Pat Byrne and began operations between London City Airport and Dublin under a franchise agreement with Virgin Atlantic Airways. On 4 July 1997, the airline began operations on the route using its own identity, with Saab 2000 aircraft.

Initially, CityJet operated the Paris to London City service on behalf of Air France. In May 1999, in partnership with Air Foyle Ireland, Air France took a 25% equity stake in the airline. In February 2002, Air France assumed complete control. The airline from this time was marketed as CityJet for Air France.

Geoffrey O’Byrne White replaced Jacques Bankir as CEO of CityJet in 2000, and held this position until 2010.

On 24 December 2007, Air France-KLM announced that it had signed an agreement for a full takeover of VLM Airlines NV from Panta Holdings and announced on 28 May 2009 that VLM Airlines would gradually start to operate under the brand name CityJet. As of 1 June 2010, the whole VLM Airlines Fokker 50 fleet wore full CityJet livery, although VLM remained the owner of its own Airline Operators Certificate, and the Fokker 50 fleet is listed on the Belgian registry.

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