It is possible to cancel a VivaAerobus flight as long as passengers do so at least 24 hours after buying their ticket and at least 7 days before the departure time. Travelers won't get their ticket back if they don't show up inside this 24-hour limit. VivaAerobus Flight Cancellation can happen by going to the airline's official website or by getting in touch with customer support. If a traveller changes their mind at the last minute, they can even cancel their ticket by going to the airport in person.