Initial operations as charter airline On 3 April 2018, the carrier received an
air operator's certificate granted by the Polish
Civil Aviation Authority. It started operations on 23 April 2018 and the first flight took place on 26 April 2018, on the route from
Poznań–Ławica Airport to
Zakynthos International Airport. In Poznan and Wroclaw the carrier will use the infrastructure of already existing bases, while in Katowice and Warsaw new ones were created. Representatives of the carrier announced that all five aircraft in the Ryanair Sun fleet would receive Polish registration numbers. During summer 2018, Ryanair Sun operated one own Boeing 737-800 registered as SP-RSA. The aircraft was employed on charter flights from
Warsaw Chopin Airport. Starting from November 2018, several former Ryanair-operated Boeing 737 aircraft were moved from the Irish to the Polish registry and now operated by Ryanair Sun on behalf of its parent companies scheduled flights out of Poland.
Rebranding to Buzz In March 2019, Ryanair announced that the airline would be rebranded as "Buzz" in autumn 2019.
Buzz was formerly the name of a UK budget airline Ryanair bought from
KLM in April 2003. Buzz will still operate scheduled and charter flights from its bases in Poland, Czechia, and Bulgaria and aimed to expand its fleet from 17 Boeing 737-800 aircraft to 25 by summer 2019. ==Fleet==