The trial over the death of 33-year-old LGBTQI activist Zak Kostopoulos in September 2018 in central Athens has been set for October 21.
Six people - two store owners and four police officers - are facing charges of causing fatal bodily harm.
The activist's family had lamented the delays in setting a date.
The United States embassy in Athens has issued a health alert for its citizens with details on international flights and ferry travel amid measures imposed in Greece to stem the spread of coronavirus.
Here is some of the key information included in the embassy statement:
Direct flights between the United States and Greece are scheduled to resume in early July.
Two boats carrying a total of 67 migrants and refugees landed on the eastern Aegean island of Lesvos late Thursday.
Most of the passengers were from Afghanistan and African countries, while 16 were from Syria.
Authorities said all the migrants would be kept in quarantine for the next 14 days as part of measures to prevent the spread of Covid-19.