Greece is not banning UK flights but imposing stricter measures..Travellers arriving from UK, aside from a Negative PCR test max 72h before arrival and a complete PLF form, will have to be quarantined to their stated address for10 days, or until the day of departure if their stay is less than that.After the 10-day quarantine, they will have to repeat and have again a negative PCR test result before quarantine is lifted..Immediate effect from 22Dec -7th Jan