The deal, which sees the Hungarian carrier land 15 daily slot pairs from Norwegian, means Wizz will base four additional A321neos at the airport from spring 2022.
Additional low-cost routes will be “announced in due course”, with the Gatwick investment also creating “significant inbound opportunities” for Wizz Air Hungary.
Wizz opened its Gatwick base in October 2020 and group chief executive Jozsef Varadi said the deal was “further evidence of our commitment” to the airport.