Travelling to Estonia.

Restrictions to entry still apply to foreign nationals wishing to enter Estonia from outside the European Union, the Schengen area, and the United Kingdom of Great Britain and Northern Ireland. Entry to Estonia is allowed for persons who have Estonian citizenship, Estonian residence permit or right of residence or whose permanent place of residence according to the population register is in Estonia. More  https://www.kriis.ee/en/travelling-estonia-foreigners

The borders of Estonia opened from 1 June to passengers arriving from European countries. Estonia will admit people with no symptoms arriving from the European Union, the members of the Schengen area or the United Kingdom of Great Britain and Northern Ireland. The compulsory quarantine for people arriving in Estonia depends on whether the relative coronavirus infection rate in their country of departure where they have spent at least 14 days before departure is above 15. This means that no more than 15 people per 100 000 inhabitants are infected in the passenger’s country of departure in the past 14 days and. Anyone arriving in Estonia from a country with a higher infection rate must self-isolate for two weeks on arrival. Information on countries and quarantine requirements is updated every Friday. https://vm.ee/en/information-countries-and-quarantine-requirements-passengers

In case you have questions about the entry or quarantine :

With regard to people who do not fall under the exemptions referred to in the order of the Government of the Republic, it is still possible to authorise a border crossing on the basis of an application for permission, which must be sent to ppa@politsei.ee.

Order not to open airlines between Estonia and countries with a high-risk number of daily new cases of coronavirus is extended  until July 14, after which the Ministry of Economic Affairs and Communications in co-operation with the Health Board, will assess the further necessity of the restriction. (English text after Estonian https://www.mkm.ee/et/uudised/info-lennupiirangute-kohta)