According to a press release sent to the Budapest Business Journal, the airline asks all passengers concerned to book flights and check-in online, and to bring their boarding passes with them to the airport, either photocopied or printed, before the planned and announced shutdown.

Wizz Air also points out that during the maintenance period, passengers will not be able to modify their existing reservations or make changes to them via customer service.

During the outage, if passengers are unable to check in online, they will be able to obtain their boarding passes free of charge at the check-in counters between 0:00 and 8:00 a.m. on July 4, the press release notes.