Does Viva Aerobus allow changes to flight dates?

Yes, Viva Aerobus allows flight date changes for most bookings, though fees and fare differences might apply. If your plans have shifted and you need to change your travel dates, ensure you do so early to minimize costs. Depending on your fare type, some restrictions may apply. Visit the Viva Aerobus website or reach out to customer service for further details on how to modify your reservation. Secure your updated booking with the least hassle by acting promptly.

Source: https://central.xero.com/s/question/0D58V00009QbOM3SAN/does-viva-aerobus-allow-changes