Finnair made this announcement:
Checking coronavirus related certificates is an important part of international travel today and requires effort from both travelers and airlines. Finnair now introduces a new digital tool with which customers can confirm their coronavirus certificates before their journey. The service is available as of 3 December 2021 for travelers from Finland to Austria, Belgium, Czech Republic, Greece, Latvia, Lithuania, the Netherlands, Norway, Spain and Switzerland as part of the current check-in done online or through the Finnair app. The current list of countries is subject to change due to, for example, additional authority travel requirements. The tool will be expanded to other destination countries at a later stage.
The new tool digitalizes parts of the current paper documentation system for corona related travel document management and checks at airports. With the tool, people traveling to the included destinations can confirm that they have the corona certificates required by the destination authorities. Travelers can do this as part of the check-in online or through the Finnair app. Customers will get a “clear to travel” confirmation together with an online boarding pass. No certificate checks are needed at the airport. However, corona related travel documents may be asked at the destination.
The new tool will be introduced in two phases. On 3 December 2021, customers traveling from Finland to Austria, Belgium, Czech Republic, Greece, Latvia, Lithuania, the Netherlands, Norway, Spain and Switzerland will be able to use it. Early next year, we will add an upload functionality into the tool, which enables customers to upload or scan their corona certificates for verification. With this feature in place, the service will become available for more destinations and customers.