You can check in for a Wizz Air flight online starting 24 hours before departure. Online check-in is the most convenient and preferred method. It opens 24 hours before your flight and stays open up until 3 hours before the scheduled departure time. You can check in using Wizz Air’s website or mobile app. Once you check in online, you can download or print your boarding pass. If you're using the mobile app, your boarding pass will be saved on your phone, and you can show it at the airport.

However, if you’ve purchased a seat during booking or later, online check-in becomes available even earlier—30 days before your flight. This applies only if you selected your seat in advance. If not, you’ll need to wait until 24 hours before departure. It’s always a good idea to check in as early as possible so you can choose a better seat (if available), confirm your travel details, and avoid last-minute issues.

At some airports, you must check in at the airport even if you tried to check in online. In such cases, Wizz Air does not charge a fee for airport check-in. But at most airports, airport check-in costs extra, unless it’s included in your ticket or you’ve purchased the WIZZ Priority or WIZZ Go/WIZZ Plus packages. Airport check-in usually opens 2 hours before your flight and closes 40 minutes before departure.

It’s important to remember that you should arrive at the airport well in advance. Wizz Air recommends arriving at least 2 hours before your flight to have enough time for check-in, security, and boarding. Even if you’ve checked in online, you’ll need time to drop off your luggage (if you have any), go through security, and reach your boarding gate. Boarding generally starts around 30–40 minutes before departure and closes 15 minutes before takeoff, so make sure you're at the gate on time.

If you’re traveling within the European Union (EU), you may only need your national ID card (depending on your citizenship and the destination), but for international flights outside the EU, you’ll definitely need a passport. Make sure your travel documents are valid and accepted by the destination country.

To summarize, Wizz Air online check-in opens 24 hours before departure, or 30 days before if you’ve selected a seat. It closes 3 hours before your flight. Airport check-in typically opens 2 hours and closes 40 minutes before the flight. Always check your booking details and airport information in case there are any specific local rules or exceptions. By checking in online early and arriving at the airport on time, you’ll have a smooth and stress-free start to your journey with Wizz Air.