必須停留在機場禁區,不入境或過海關。見官網說明: Travel from a non-Schengen country to another non-Schengen country is allowed via Helsinki Airport. However, you should be travelling to your country of residence and remain in the non-Schengen transit area of Helsinki Airport. Please take into consideration any possible coronavirus related restrictions of the destination. https://www.finavia.fi/en/newsroom/2020/how-coronavirus-affecting-air-travel-and-finavias-airports
Travel from a non-Schengen country to another non-Schengen country is allowed via Helsinki Airport. However, you should be travelling to your country of residence and remain in the non-Schengen transit area of Helsinki Airport. Please take into consideration any possible coronavirus related restrictions of the destination.
https://www.finavia.fi/en/newsroom/2020/how-coronavirus-affecting-air-travel-and-finavias-airports