As per Wizz Air Cancellation Policy, you are allowed to cancel your flight for free. But, you will need to fall under a risk-free period
Have you made your reservation with Wizz Air? And now you wish to change your flight date due to sudden changes in your plan. Wizz
Modify My Trips/Reservations
Enter Your Information To Look Up a Trip. After that you can Modify your reservations. In order to book a flight or make reservations, call on our Number.