From December 19th 2021 all foreigners entering Greece will need to show a negative Covid test in order to enter the country, regardess of having a vaccination or recovery certificate. The Greek government is introducing the new measures in the light of an increasing number of Covid cases and to attempt to delay the spread of the new Omicron variant.
Previously a vaccination certificate or a certificate of recovery in the last 6 months would suffice, but this is no longer the case under the stricter new rules. The negative test should not be older than 72 hours for a PCR test or 24 hours for a rapid antigen test.
The new rules have been announced for a period until January 10th 2022 and apply to all border crossings amd modes of transportation, including the overland borders with Albania and the ferry from Saranda to Corfu. Also take this in mind when planning to visit Saranda by flying into Corfu Airport.
The requirement to fill out the online Passenger Locator Form remains in place as well. You can submit and download the form here: https://travel.gov.gr/
Upon arrival in Greece, passengers could also be subject to random rapid tests, so we advise to plan enough time for any delays at the border.
UPDATE: SINCE FEBRUARY 8TH 2022 A COVID TEST IS NO LONGER REQUIRED TO ENTER GREECE WHEN YOU CAN SHOW A VACCINATION CERTIFICATE. FOR THE LATEST DETAILS, CHECK THE OFFICIAL WEBSITE OF THE GREEK AUTHORITIES: HTTPS://TRAVEL.GOV.GR/