To Change Volaris Flight booking online, visit the airline's official website. Log in to your account, navigate to the "Manage Trip" section, and select the booking you wish to change at 1-818-878-8939. Follow the prompts to make the necessary modifications, such as updating dates or passenger details. Keep in mind that fees or fare differences may apply. For further assistance, contact Volaris customer support. Always review the airline's policies and terms before making changes to your reservation.