In this Forum , we look at the best methods for VivaAerobus Flight Change Policy Firstly, Visit the official website of "VivaAerobus" or "https://www.vivaaerobus.com/en".Then, you have to click on " My Flights" or " Modify My Reservation". Enter your personal details like " Last name" and " Reservation code". After you have filled in your personal details Click on"Search" button " Search" button. Now, you have to select the option you prefer which you wish to alter in the flight booking. Follow the command given and change your reservation.