[citation needed] Representatives of the carrier announced that all five aircraft in the Ryanair Sun fleet would receive Polish registration numbers.

The aircraft subsequently replaced Ryanair mainline capacity out of Warsaw Modlin Airport, now operating scheduled services on behalf of its parent company.

[8] Starting from November 2018, several former Ryanair-operated Boeing 737 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.

[11] 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 737-800s to 25 by summer 2019.

[12] As of January 2025[update], Buzz operates an all-Boeing 737 fleet consisting of the following aircraft:[13] Media related to Ryanair Sun at Wikimedia Commons